Comparison of email clients

The following tables compare general and technical features of notable non-web-based email client programs.

General

Basic general information about the clients: creator/company, O/S, license, and interface.

Client	Author/Developer	Operating system	Software license	User Interface
Template:Rh | Alpine	University of Washington	Cross-platform	Template:Open source	TUI
Template:Rh | Apple Mail	Apple	macOS, iOS, watchOS	Template:Proprietary	GUI (Cocoa)
Template:Rh | Balsa	Stuart Parmenter	Linux	Template:Open source	GUI (GTK3)
Template:Rh | Becky! Internet Mail	Rimarts	Windows	Template:Proprietary	GUI
Template:Rh2 | BlitzMail	Dartmouth College		Template:Open source	GUI
Template:Rh | Canary Mail	Cartasec Pte. Ltd.	Cross-platform	Template:Proprietary	GUI
Template:Rh | Citadel	citadel.org	Unix-like	Template:Open source	Webmail
Template:Rh | Claws Mail	the Claws Mail team	Cross-platform	Template:Open source	GUI (GTK2)
Template:Rh2 | Courier (formerly Calypso)	Micro Computer Systems, Inc., continued by Rose City Software	Windows	Template:Proprietary	GUI
Template:Rh | Elm	Dave Taylor, Sydney Weinstein, Bill Pemberton, Michael Elkins, Kari Hurtta	Unix-like	Template:Open source<ref>Elm Mail System GPL</ref>	TUI
Template:Rh | eM Client	eM Client Inc.	Windows, macOS, Android, iOS	Template:Proprietary	GUI
Template:Rh | EmailTray	Internet Promotion Agency S.A.	Windows, Android	Template:Proprietary	GUI
Template:Rh2 | Eudora OSE	Qualcomm	Windows, macOS	Template:Open source	GUI
Template:Rh | Evolution	The GNOME Project	Unix-like	Template:Open source	GUI (GTK)
Template:Rh | FirstClass	Open Text		Template:Proprietary	GUI
Template:Rh | Forté Agent	Mark Sidell	Windows	Template:Proprietary	GUI
Template:Rh | Geary	The GNOME Project (formerly Yorba Foundation)	Unix-like	Template:Open source	GUI (GTK)
Template:Rh | GNUMail	Ludovic Marcotte and others	Unix-like, macOS	Template:Open source	GUI
Template:Rh | Gnus	Gnus team	Cross-platform	Template:Open source	TUI and GUI
Template:Rh | GroupWise	Micro Focus (formerly Novell)	Cross-platform	Template:Proprietary	GUI
Template:Rh | Hiri	Hiri	Cross-platform	Template:Proprietary	GUI
Template:Rh | i.Scribe, InScribe	Memecode	Windows, macOS, Linux	Template:Open source	GUI
Template:Rh | HCL Notes (formerly IBM Notes and IBM Lotus Notes)	HCL Technologies (formerly IBM and Lotus Software), HCL Technologies	Windows, macOS, Linux	Template:Proprietary	GUI (Notes), Web (Verse, iNotes) and Mobile (Traveler)
Template:Rh | IMP	Horde LLC	Cross-platform	Template:Open source	Webmail
Template:Rh | K-9 Mail	K-9 Dog Walkers: cketti, et al.	Android	Template:Open source	GUI
Template:Rh | KMail	KDE	Cross-platform	Template:Open source	GUI (Qt)
Template:Rh | Mail (Windows)	Microsoft	Windows	Template:Proprietary	GUI
Template:Rh | Mailbird	Mailbird	Windows	Template:Proprietary	GUI
Template:Rh2 | Mailpile	Mailpile	Windows, macOS, Linux	Template:Open source	Webmail
Template:Rh | mailx	Template:Dunno	Unix-like	Template:Open source	TUI
Template:Rh2 | Microsoft Entourage	Microsoft	macOS	Template:Proprietary	GUI
Template:Rh | Microsoft Outlook	Microsoft	Windows, macOS	Template:Proprietary	GUI
Template:Rh2 | Mozilla Mail & Newsgroups	Mozilla Foundation		Template:Open source	GUI (XUL)
Template:Rh | Mozilla Thunderbird	Mozilla Foundation	Cross-platform	Template:Open source	GUI (XUL)
Template:Rh2 | Mulberry	Cyrus Daboo (formerly Cyrusoft International, Inc./ISAMET)	Cross-platform	Template:Open source	GUI
Template:Rh | Mutt	Michael Elkins	Cross-platform	Template:Open source	TUI (ncurses)
Template:Rh2 | Netscape Messenger	Netscape Communications		Template:Dunno	GUI
Template:Rh2 | Netscape Messenger 9	Netscape Communications		Template:Open source	GUI
Template:Rh2 | Nylas Mail	Nylas	Windows, macOS, Linux	Template:Open source	GUI
Template:Rh | nmh / MH	RAND Corporation	Unix-like	Template:Open source	CLI
Template:Rh | Opera Mail	Opera Software	Cross-platform	Template:Proprietary	GUI
Template:Rh2 | Outlook Express	Microsoft	Windows	Template:Proprietary	GUI
Template:Rh | Pegasus Mail	David Harris	Windows	Template:Proprietary	GUI
Template:Rh2 | Pine	University of Washington	Cross-platform	Template:Proprietary<ref>{{#invoke:citation/CS1|citation	CitationClass=web }}</ref>	TUI
Template:Rh2 | Pocomail	Poco Systems	Windows	Template:Proprietary	GUI
Template:Rh | RoundCube	The RoundCube Team	Cross-platform	Template:Open source	Webmail
Template:Rh | Samsung Email	Samsung Electronics	Samsung, Android 8+	Template:Proprietary	GUI
Template:Rh | SeaMonkey Mail & Newsgroups	SeaMonkey Council	Cross-platform	Template:Open source	GUI (XUL)
Template:Rh | Spark	Readdle	macOS	Template:Proprietary	GUI
Template:Rh | SquirrelMail	The SquirrelMail Project Team	Cross-platform	Template:Open source	Webmail
Template:Rh | Superhuman	Rahul Vohra	Cross-platform	Template:Proprietary	Webmail
Template:Rh2 | Sylpheed	Hiroyuki Yamamoto	Cross-platform	Template:Open source	GUI (GTK2)
Template:Rh | The Bat!	RitLabs	Windows	Template:Proprietary	GUI
Template:Rh | Trojitá	KDE	Cross-platform	Template:Open sourceTemplate:R	GUI (Qt)
Template:Rh2 | Turnpike	Thus PLC (Demon Internet)	Windows	Template:Proprietary	GUI
Template:Rh | Vivaldi	Vivaldi Technologies AS	Cross-platform	Template:Proprietary	GUI (Chrome)
Template:Rh2 | Windows Live Mail	Microsoft	Windows	Template:Proprietary	GUI
Template:Rh2 | Windows Mail (Vista)	Microsoft	Windows	Template:Proprietary	GUI
Template:Rh | YAM	YAM Open Source Team and contributing authors	AmigaOS	Template:Open source	GUI
Template:Rh | Zimbra Desktop	Zimbra	Cross-platform	Template:Open source	GUI
Client	Author/Developer	Operating system	Software license	User interface

Release history

A brief digest of the release histories.

Client	First public Date	First public Version	First stable Date	First stable Version	Latest stable release
Template:Rh | Alpine	2006-11	0.8	2007 December	1.00	Template:Wikidata Template:Wikidata
Template:Rh | Apple Mail	2001-03-24	?	?	?	Template:Wikidata (Template:Start date and age)
Template:Rh | Becky! Internet Mail	1996	1	Template:Dunno	Template:Dunno	Template:Wikidata Template:Wikidata
Template:Rh | Canary Mail	2017-06-15	1.0	2017-06-15	1.0	4.01 (5th June, 2023)
Template:Rh | Citadel	1987	Template:Dunno	1988	1.00	Template:Wikidata Template:Wikidata
Template:Rh | Claws Mail	2001-05	0.4.67	2005-01	1.0.0	Template:Wikidata Template:Wikidata
Template:Rh2 | Courier	2004-06	3.5	discontinued	discontinued	Template:Latest stable software release/Courier
Template:Rh | Elm	1986	Template:Dunno	1987-03	2	Template:Wikidata Template:Wikidata
Template:Rh | eM Client	2007-11	1.0	2007-11	1.0	Template:Latest stable software release/eM Client
Template:Rh | EmailTray	2010-10	2.0	2011-03	3.11	Template:Latest stable software release/EmailTray
Template:Rh2 | Eudora	citation	CitationClass=web }}</ref>	Template:Dunno	1988<ref name="eudorabirth" />	Template:Dunno	Template:Latest stable software release/Eudora
Template:Rh | Evolution	2000-05-11	0.0	2001-12-03	1.0	Template:Wikidata Template:Wikidata
Template:Rh | Forté Agent	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Latest stable software release/Forté Agent
Template:Rh | Geary	2012	0.1	2012	0.1	Template:Wikidata Template:Wikidata
Template:Rh | Gnus	citation	CitationClass=web }}</ref>	Template:Dunno	1988-02-01<ref name="gnusrelease"/>	2.0	2015-04-06 Template:Latest stable software release/Gnus
Template:Rh | GroupWise	Template:Dunno	Template:Dunno	1986	1.0	Template:Wikidata Template:Wikidata
Template:Rh | Hiri	2014-02	0.4	2016-06	1.0	Template:Latest stable software release/Hiri
Template:Rh | i.Scribe / InScribe	1999	1.00	Template:Dunno	Template:Dunno	Template:Latest stable software release/Scribe Mail
Template:Rh | HCL Notes (formerly IBM Lotus Notes)	1989	1.0	1989	1.0	Template:Wikidata Template:Wikidata
Template:Rh | IMP	Template:Dunno	Template:Dunno	1998	1.0	Template:Wikidata Template:Wikidata
Template:Rh | K-9 Mail	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Wikidata Template:Wikidata
Template:Rh | KMail	1998-10	Alpha	1999-02	1.0.17	Template:Wikidata Template:Wikidata
Template:Rh | Mailbird	2013-04-01	Public Beta	Template:Dunno	Template:Dunno	Template:Latest stable software release/Mailbird
Template:Rh | Mailpile	2011-11	<ref>Alpha</ref>	<ref>tbd 2017</ref>	<ref>1.00 RC</ref>	Template:Latest stable software release/Mailpile
Template:Rh2 | Microsoft Entourage	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Latest stable software release/Microsoft Entourage
Template:Rh | Microsoft Office Outlook	1997	97	1997	97	Template:Latest stable software release/Microsoft Office
Template:Rh | Mozilla Thunderbird	2003-07-28	0.1	2004-12-07	1.0	Template:Wikidata Template:Wikidata
Template:Rh2 | Mulberry	1996-09-20	1.0	1996-09-20	1.0	Template:Latest stable software release/Mulberry
Template:Rh | Mutt	1995	Template:Dunno	Template:Dunno	Template:Dunno	Template:Wikidata Template:Wikidata
Template:Rh2 | Netscape Messenger	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Latest stable software release/Netscape Mail & Newsgroups
Template:Rh2 | Netscape Messenger 9	2007-11-15	9.0a1	discontinued	discontinued	2007-11-15
Template:Rh | nmh / MH	1979	Template:Dunno	Template:Dunno	Template:Dunno	Template:Latest stable software release/MH Message Handling System
Template:Rh | Opera Mail	1996-09	2.1b1	1996-12	2.1	Template:Latest stable software release/Opera Mail
Template:Rh2 | Outlook Express	1996	3.0	Template:Dunno	Template:Dunno	Template:Wikidata Template:Wikidata
Template:Rh | Pegasus Mail	1990	Template:Dunno	1990	Template:Dunno	Template:Wikidata Template:Wikidata
Template:Rh2 | Pine	1992-01-15	2.00	1992-01-15	2.00	Template:Wikidata Template:Wikidata
Template:Rh2 | Pocomail	1999	Template:Dunno	Template:Dunno	Template:Dunno	Template:Latest stable software release/Pocomail
Template:Rh | RoundCube	2006	0.1-rc1	2014-04-07	1.0.0	Template:Wikidata Template:Wikidata
Template:Rh | SeaMonkey Mail & Newsgroups	2005-09-15	1.0a	2006-01-30	1.0	Template:Wikidata Template:Wikidata
Template:Rh | SquirrelMail	1999-12	0.1	2001-01	1.0	Template:Wikidata Template:Wikidata
Template:Rh | Sylpheed	2000-01	0.1.0	2004-12	1.0.0	Template:Wikidata Template:Wikidata
Template:Rh | The Bat!	1997-03	1.0 Beta	1998-03	1.00 Build 1310	Template:Wikidata Template:Wikidata
Template:Rh | Trojitá	2009-08	0.1	2012-12	0.3.90	Template:Wikidata Template:Wikidata
Template:Rh2 | Turnpike	1996 (circa)	1.0	1996 (circa)	1.0	Template:Latest stable software release/Turnpike
Template:Rh | Vivaldi	2015-11-03	Beta 1	2022-06-09	1.0
Template:Rh2 | Windows Live Mail	2007-11-06	12	2007-11-06	12	Template:Latest stable software release/Windows Live Mail
Template:Rh2 | Windows Mail	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	2007-01-01
Template:Rh | YAM	1995	1.0	1995	1.0	Template:Wikidata Template:Wikidata
Template:Rh | Zimbra	2005-11	Beta	2006-03	3.5	Template:Latest stable software release/Zimbra

Operating system support

The operating systems on which the clients can run natively (without emulation).

Client	Microsoft Windows	macOS	Linux	BSD	Unix	DOS	Other
Template:Rh | Alpine	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No
Template:Rh | Apple Mail	Template:No	Template:Included	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | Balsa	Template:No	Template:No	Template:Yes	Template:Yes	Template:No	Template:No	Template:No
Template:Rh | Becky! Internet Mail	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | Canary Mail	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | Citadel	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No
Template:Rh | Claws Mail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No
Template:Rh2 | Courier	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | Elm	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No
Template:Rh | eM Client	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | EmailTray	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh2 | Eudora	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | Evolution	Template:No Template:R	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No
Template:Rh | Forté Agent	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | Geary	Template:No	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No
Template:Rh | Gnus	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No
Template:Rh | GroupWise	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:No
Template:Rh | Hiri	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:No	Template:No
Template:Rh | i.Scribe / InScribe	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No
Template:Rh | IBM Lotus Notes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:No	Template:No
Template:Rh | IMP	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No
Template:Rh | KMail	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No
Template:Rh | Mailbird	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | Mailpile	Template:Yes Template:R	Template:Yes Template:R	Template:Yes	Template:Yes Template:R	Template:Yes Template:R	Template:No Template:R	Template:No Template:R
Template:Rh | mailx	Template:No	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No
Template:Rh2 | Microsoft Entourage	Template:No	Template:Terminated (2008)	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | Microsoft Office Outlook	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh2 | Mozilla Mail & Newsgroups	colspan="5" Template:Terminated (1.7.13)	Template:No	Template:No
Template:Rh | Mozilla Thunderbird	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No
Template:Rh2 | Mulberry	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No
Template:Rh | Mutt	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes<ref>{{#invoke:citation/CS1|citation	CitationClass=web }}</ref>	Template:No
Template:Rh2 | Netscape Messenger	colspan="5" Template:Terminated (4.80)	Template:No	Template:No
Template:Rh2 | Netscape Messenger 9	colspan="5" Template:Terminated (9.0a1)	Template:No	Template:No
Template:Rh | nmh / MH	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No
Template:Rh | Opera Mail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:No	Template:No
Template:Rh2 | Outlook Express	Template:Included (up to XP)	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | Pegasus Mail	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:Yes	Template:Yes
Template:Rh2 | Pine	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Terminated (3.96)<ref>Template:Cite FTP</ref>	Template:No
Template:Rh2 | Pocomail	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | RoundCube	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No
Template:Rh | SeaMonkey Mail & Newsgroups	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No
Template:Rh | SquirrelMail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No
Template:Rh | Sylpheed	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No
Template:Rh | The Bat!	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | Trojitá	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes
Template:Rh2 | Turnpike	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh2 | Vivaldi	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No
Template:Rh2 | Windows Live Mail	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh2 | Windows Mail	Template:Included (Vista)	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | YAM	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Yes
Template:Rh | Zimbra	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No
Client	Microsoft Windows	macOS	Linux	BSD	Unix	DOS	Other

Protocol support

Communication and access protocol support

What email and related protocols and standards are supported by each client. Template:Sort-under

Client	POP3 fetch all messages (RFC 1939)	POP3 selected by filter (RFC 1939)	POP3 selected by user (RFC 1939)	IMAP4 (RFC 3501)	SMTP (RFC 5321)	NNTP (RFC 3977)	LDAP v2 (RFC 4511)	LDAP v3 (RFC 4511)	EWS	IPv6 (RFC 2460)	MAPI
Template:Rh | Alpine	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno
Template:Rh | Apple Mail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno
Template:Rh | Becky! Internet Mail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes Template:R	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Canary Mail	Template:No	Template:No	Template:No	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:Yes	Template:Yes	Template:No
Template:Rh | Citadel	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Claws Mail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno
Template:Rh2 | Courier	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Elm	Template:No	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | eM Client	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:Yes	Template:Yes	Template:No
Template:Rh | EmailTray	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | Evolution	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes2	Template:Dunno	Template:Yes2
Template:Rh | Gnus	Template:Yes	Template:Yes	Template:Yes<ref>(setq gnus-select-method '(pop3 "pop.example.com")) (setq gnus-secondary-select-methods '((nntp "news.gnus.org"))) After configuring Gnus for POP3, you can use the gnus-group-get-new-news command to retrieve new messages from your POP3 server. </ref>	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes2<ref>{{#invoke:citation/CS1|citation	CitationClass=web }}</ref>
Template:Rh | GroupWise	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes
Template:Rh | Hiri	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No
Template:Rh | i.Scribe / InScribe	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes Template:R	Template:Yes Template:R	Template:No	Template:No	Template:Yes
Template:Rh | HCL Notes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:No
Template:Rh | KMail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No Template:R	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Mailbird	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno
Template:Rh | Mailpile	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Microsoft Entourage	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Partial	Template:Dunno	Template:Dunno
Template:Rh2 | Microsoft Entourage 2008, Web Services Edition	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno
Template:Rh | Microsoft Office Outlook	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes
Template:Rh2 | Mozilla Mail & Newsgroups	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Mozilla Thunderbird	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Partial	Template:Partial<ref>Write to LDAP still missing after 10 years, Mozilla bug 86405</ref>	extensible<ref>Add-ons include MesQuilla ExQuilla Exchange Web Services (alpha) (see also ExQuilla for Microsoft Exchange) and Provider for Microsoft Exchange </ref>	Template:Yes	Template:Yes
Template:Rh2 | Mulberry	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes
Template:Rh | Mutt	Template:Yes	No (possible with POP3 browser)	No (possible with POP3 browser)	Template:Yes	Template:Yes	Template:No (slrn looks alike)	Template:Partial (resolve real names through NSS)	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno
Template:Rh2 | Netscape Messenger	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Netscape Messenger 9	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | nmh / MH	Template:Yes	Template:Dunno	Template:Dunno	Template:No	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:No	Template:Dunno	Template:No
Template:Rh | Opera Mail	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:Dunno	Template:Yes	Template:Yes
Template:Rh2 | Outlook Express	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:No	Template:Dunno	Template:No
Template:Rh | Pegasus Mail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes Template:R	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Pine	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Pocomail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | RoundCube	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | SeaMonkey Mail & Newsgroups	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Partial	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno
Template:Rh | SquirrelMail	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Sylpheed	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:Yes	Template:No
Template:Rh | The Bat!	Template:Yes	Template:Yes Template:R	Template:Yes Template:R	Template:Yes	Template:Yes	Template:Yes Template:R	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes
Template:Rh | Trojitá	Template:No	Template:No	Template:No	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:Yes	Template:No
Template:Rh2 | Turnpike	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Vivaldi	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:No	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes
Template:Rh2 | Windows Live Mail	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:No	Template:Yes	Template:No
Template:Rh2 | Windows Mail	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:No	Template:Yes	Template:No
Template:Rh | YAM	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:No	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Zimbra	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno
Client	POP3 fetch all messages (RFC 1939)	POP3 selected by filter (RFC 1939)	POP3 selected by user (RFC 1939)	IMAP4 (RFC 3501)	SMTP (RFC 5321)	NNTP (RFC 3977)	LDAP v2 (RFC 4511)	LDAP v3 (RFC 4511)	EWS	IPv6 (RFC 2460)	MAPI

Integration protocol support

Client	IMSP ([1])	ACAP (RFC 2244)	RSS 0.91 Feeds	RSS 1.0 Feeds	RSS 2.0 Feeds	ATOM Feeds	iCalendar (RFC 5545)	MAPI/RPC	CalDAV (RFC 4791)	CardDAV (RFC 6352)
Template:Rh | Alpine	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Apple Mail	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes	Template:Yes
Template:Rh | Becky! Internet Mail	Template:Dunno	Template:Dunno	Template:Yes Template:R	Template:Yes Template:R	Template:Yes Template:R	Template:Yes Template:R	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Canary Mail	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | Citadel	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Claws Mail	Template:Dunno	Template:Dunno	Template:No	Template:Yes Template:R	Template:Yes Template:R	Template:Yes Template:R	Template:Yes Template:R	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Courier	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Elm	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | eM Client	Template:No	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:No	Template:Yes	Template:Yes
Template:Rh | EmailTray	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:Dunno
Template:Rh2 | Eudora	Template:No	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Evolution	Template:No	Template:No	Template:No Template:R	Template:No Template:R	Template:No Template:R	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes
Template:Rh | Gnus	Template:No	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes<ref>{{#invoke:citation/CS1|citation	CitationClass=web }}</ref>	Template:Yes<ref>via org-mode</ref>	Template:Yes	Template:Yes	Template:Yes
Template:Rh | GroupWise	Template:Dunno	Template:No	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Hiri	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | i.Scribe / InScribe	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Yes	Template:Dunno	Template:Dunno
Template:Rh | IBM Lotus Notes	Template:No	Template:No	Template:Yes Template:R	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | KMail	Template:Dunno	Template:Dunno	Template:Yes Template:R	Template:Yes Template:R	Template:Yes Template:R	Template:Yes Template:R	Template:Yes Template:R	Template:Dunno	Template:Yes	Template:Yes
Template:Rh | Mailpile	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Microsoft Entourage	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Microsoft Office Outlook	Template:Dunno	Template:Dunno	Template:Yes Template:R	Template:Yes Template:R	Template:Yes Template:R	Template:Yes Template:R	Template:Partial Template:R	Template:Yes	Template:No	Template:No
Template:Rh2 | Mozilla Mail & Newsgroups	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Mozilla Thunderbird	Template:No	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes Template:R	Template:Yes Template:R	Template:Yes	Template:Yes
Template:Rh2 | Mulberry	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno
Template:Rh | Mutt	Template:Dunno	Template:Dunno	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Netscape Messenger	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Netscape Messenger 9	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | nmh / MH	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Opera Mail	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Dunno	Template:No	Template:No
Template:Rh2 | Outlook Express	Template:Dunno	Template:Dunno	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:No	Template:No
Template:Rh | Pegasus Mail	Template:Dunno	Template:Dunno	Template:Yes Template:R	Template:Yes Template:R	Template:Yes Template:R	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Pine	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Pocomail	Template:No	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | SeaMonkey Mail & Newsgroups	Template:No	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes Template:R	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | SquirrelMail	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno
Template:Rh | Sylpheed	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:Dunno
Template:Rh | The Bat!	Template:No	Template:No	Template:Yes Template:R	Template:Yes Template:R	Template:Yes Template:R	Template:Yes Template:R	Template:No	Template:Yes	Template:Dunno	Template:Yes
Template:Rh | Trojitá	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:Dunno
Template:Rh2 | Turnpike	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Windows Live Mail	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Windows Mail	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | YAM	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Zimbra	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno
Client	IMSP ([2])	ACAP (RFC 2244)	RSS 0.91 Feeds	RSS 1.0 Feeds	RSS 2.0 Feeds	ATOM Feeds	iCalendar (RFC 5545)	MAPI/RPC	CalDAV (RFC 4791)	CardDAV (RFC 6352)

Authentication support

Client	Regular		rowspan="2" Template:Verth	rowspan="2" Template:Verth	rowspan="2" Template:Verth	CRAM-HMAC Template:R			rowspan="2" Template:Verth	rowspan="2" Template:Verth	rowspan="2" Template:Verth	rowspan="2" Template:Verth	rowspan="2" Template:Verth	rowspan="2" Template:Verth	rowspan="2" Template:Verth
	Template:Verth	Template:Verth	Template:Verth	Template:Verth	Template:Verth
Template:Rh | Alpine	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:Yes	Template:No	Template:No	Template:No	Template:Dunno	Template:No	Template:No	Template:Yes	Template:No	Template:Dunno
Template:Rh | Apple Mail	Template:Yes	Template:Yes	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes Template:R
Template:Rh | Becky! Internet Mail	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno
Template:Rh | Canary Mail	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:No	Template:Yes
Template:Rh | Citadel	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Claws Mail	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:No	Template:Dunno	Template:Yes	Template:No	Template:Yes
Template:Rh2 | Courier	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Dunno	Template:No	Template:No	Template:Yes	Template:Yes	Template:Dunno
Template:Rh | Elm	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | eM Client	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:Yes	Template:No	Template:No	Template:Yes	Template:Dunno	Template:No	Template:No	Template:Yes	Template:No	Template:Yes
Template:Rh | EmailTray	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Dunno	Template:Dunno	Template:No	Template:No	Template:Yes	Template:No	Template:Dunno
Template:Rh2 | Eudora	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:Dunno	Template:No	Template:No	Template:No	Template:Dunno	Template:Dunno
Template:Rh | Evolution	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:No	Template:No	Template:Yes	Template:Dunno	Template:No	Template:No	Template:Yes	Template:No	Template:Yes
Template:Rh | Gnus	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno
Template:Rh | GroupWise	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Hiri	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:No	Template:No	Template:No	Template:No	Template:Yes
Template:Rh | i.Scribe / InScribe	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:No	Template:No	Template:Yes	Template:No	Template:Yes
Template:Rh | IBM Lotus Notes	Template:Yes	Template:Dunno	Template:Yes	Template:No	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:No	Template:Yes	Template:Dunno	Template:Dunno
Template:Rh | KMail	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:No	Template:No	Template:Yes	Template:Dunno	Template:No	Template:No	Template:Yes	Template:Yes	Template:Dunno
Template:Rh | Mailpile	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Microsoft Entourage	Template:Yes	Template:No	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno
Template:Rh | Microsoft Office Outlook	Template:Yes	Template:No	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:No	Template:No	Template:Yes	Template:No	Template:Dunno
Template:Rh2 | Mozilla Mail & Newsgroups	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Mozilla Thunderbird	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:No	Template:No	Template:No<ref name="bugzilla.mozilla.org">{{#invoke:citation/CS1|citation	CitationClass=web }}</ref>	Template:Dunno	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Yes
Template:Rh2 | Mulberry	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:Yes	Template:No	Template:No	Template:Yes	Template:Dunno	Template:No	Template:No	Template:Yes	Template:Yes	Template:Dunno
Template:Rh | Mutt	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:No	Template:No	Template:Yes	Template:Dunno	Template:No	Template:No	Template:No	Template:Yes	Template:No
Template:Rh2 | Netscape Messenger	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Netscape Messenger 9	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | nmh / MH	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Opera Mail	Template:Yes	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:No	Template:Dunno	Template:Dunno	Template:Dunno	Template:No	Template:No	Template:Yes	Template:Yes	Template:Dunno
Template:Rh2 | Outlook Express	Template:Yes	Template:No	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:No	Template:No	Template:Yes	Template:No	Template:Dunno
Template:Rh | Pegasus Mail	Template:Yes	Template:Dunno	Template:No	Template:No	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:No	Template:No	Template:Yes	Template:Yes	Template:Dunno
Template:Rh2 | Pine	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:Yes	Template:No	Template:No	Template:No	Template:Dunno	Template:No	Template:No	Template:Yes	Template:No	Template:Dunno
Template:Rh2 | Pocomail	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | RoundCube	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno
Template:Rh | SeaMonkey Mail & Newsgroups	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:No	Template:No	Template:No<ref name="bugzilla.mozilla.org"/>	Template:Dunno	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Dunno
Template:Rh | SquirrelMail	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno
Template:Rh | Sylpheed	Template:Yes	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:Dunno	Template:No	Template:No	Template:Yes	Template:No	Template:No
Template:Rh | The Bat!	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:Dunno	Template:Yes Template:R	Template:Yes Template:R	Template:Yes	Template:No	Template:Yes
Template:Rh | Trojitá	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:No	Template:No	Template:Yes	Template:No	Template:Dunno
Template:Rh2 | Turnpike	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Windows Live Mail	Template:Yes	Template:No	Template:Yes	Template:No	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh2 | Windows Mail	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes Template:R
Template:Rh | YAM	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno
Template:Rh | Zimbra	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes Template:R	Template:Dunno	Template:Dunno
Client	Regular		rowspan="2" Template:Verth	rowspan="2" Template:Verth	rowspan="2" Template:Verth	CRAM-HMAC Template:R			rowspan="2" Template:Verth	rowspan="2" Template:Verth	rowspan="2" Template:Verth	rowspan="2" Template:Verth	rowspan="2" Template:Verth	rowspan="2" Template:Verth	rowspan="2" Template:Verth
	Template:Verth	Template:Verth	Template:Verth	Template:Verth	Template:Verth

SSL and TLS support

Client	Secure POP3		Secure IMAP4		Secure SMTP		Secure NNTP		Secure LDAP		SNI	OCSP Template:R	CRL Template:R
	SSL	TLS Template:R	SSL	TLS Template:R	SSL	TLS Template:R	SSL	TLS	SSL	TLS
Template:Rh | Alpine	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Apple Mail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Becky! Internet Mail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Canary Mail	Template:No	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | Citadel	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Claws Mail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes
Template:Rh2 | Courier	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | Elm	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | eM Client	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:No	Template:Yes
Template:Rh | EmailTray	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:No	Template:No
Template:Rh2 | Eudora	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Evolution	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:No	Template:No
Template:Rh | Gnus	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | GroupWise	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Hiri	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | i.Scribe / InScribe	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:No	Template:No
Template:Rh | IBM Lotus Notes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes
Template:Rh | KMail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Mailpile	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Microsoft Entourage	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Microsoft Office Outlook	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Mozilla Mail & Newsgroups	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Mozilla Thunderbird	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Yes
Template:Rh2 | Mulberry	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Mutt	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Netscape Messenger	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Netscape Messenger 9	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | nmh / MH	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Opera Mail	Template:Yes	Template:Partial Template:R	Template:Yes	Template:Partial Template:R	Template:Yes	Template:Partial Template:R	Template:Yes	Template:No	Template:N/a	Template:N/a	Template:Dunno	Template:Yes	Template:Yes
Template:Rh2 | Outlook Express	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Pegasus Mail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Pine	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Pocomail	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | RoundCube	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | SeaMonkey Mail & Newsgroups	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes
Template:Rh | SquirrelMail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Sylpheed	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | The Bat!	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:Yes	Template:Yes Template:R	Template:Yes Template:R
Template:Rh | Trojitá	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes (system)	Template:Yes (system)
Template:Rh2 | Turnpike	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Windows Live Mail	Template:Yes	Template:No	Template:Yes	Template:No	Template:Yes	Template:No	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Windows Mail	Template:Yes	Template:No	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | YAM	Template:Yes	Template:Yes	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Zimbra	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno
Client	Secure POP3		Secure IMAP4		Secure SMTP		Secure NNTP		Secure LDAP		SNI	OCSP Template:R	CRL Template:R
	SSL	TLS Template:R	SSL	TLS Template:R	SSL	TLS Template:R	SSL	TLS	SSL	TLS

Features

Information on what features each of the clients support.

General features

For all of these clients, the concept of "HTML support" does not mean that they can process the full range of HTML that a web browser can handle. Almost all email readers limit HTML features, either for security reasons, or because of the nature of the interface. CSS and JavaScript can be especially problematic. Template:Sort-under

Client	rowspan="2" Template:Verth	rowspan="2" Template:Verth	rowspan="2" Template:Verth	Junk filtering		rowspan="2" Template:Verth	rowspan="2" Template:Verth	rowspan="2" Template:Verth	PGP support		S/MIME support
	local	server- side	inline	PGP/MIME or OpenPGP	protocol	OCSP	CRL	certificates on tokens, smartcards support
Template:Rh | Alpine	Template:Partial	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Apple Mail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:No
Template:Rh | Becky! Internet Mail	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:Yes	Template:No	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Canary Mail	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No
Template:Rh | Citadel	Template:Yes	Template:Yes	Template:No	Template:Yes Template:R	Template:Dunno	Template:Dunno	Template:No	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Claws Mail	Template:Partial	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes
Template:Rh2 | Courier	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:Dunno	Template:No	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Elm	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | eM Client	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes
Template:Rh | EmailTray	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Dunno	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh2 | Eudora	Template:Yes	Template:No	Template:Yes	Template:Included	Template:Included	Template:Dunno	Template:Yes	Template:No	Template:Yes Template:R	Template:Yes Template:R	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Evolution	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:No	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Gnus	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes
Template:Rh | GroupWise	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Hiri	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | i.Scribe / InScribe	Template:Partial	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | HCL Notes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes Template:R	Template:Dunno	Template:Yes	Template:Yes (4.1.2+)	Template:Yes	Template:Yes<ref>{{#invoke:citation/CS1|citation	CitationClass=web }}</ref>	Template:Yes	Template:Yes
Template:Rh | KMail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes (with GPG)	Template:Yes (1.5+, with GPGME)	Template:Yes	Template:Yes	Template:Yes	Template:Dunno
Template:Rh2 | Mailbird	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | Mailpile	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Microsoft Entourage	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes
Template:Rh | Microsoft Office Outlook	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes (2010+)<ref>{{#invoke:citation/CS1|citation	CitationClass=web }}</ref>	Template:No	Template:No	Template:Yes	Template:Dunno	Template:Yes	Template:Yes
Template:Rh2 | Mozilla Mail & Newsgroups	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Mozilla Thunderbird	Template:Yes	Template:Yes Template:R	Template:Yes	Template:Yes	Template:Yes	Template:Yes Template:R	Template:Yes	Template:Yes	Template:Yes Template:R	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes
Template:Rh2 | Mulberry	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes Template:R	Template:Yes Template:R	Template:Yes Template:R	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Mutt	Template:Partial	Template:Yes	Yes (no support for images)	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes (with GPGME)	Template:Dunno
Template:Rh2 | Netscape Messenger	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Netscape Messenger 9	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | nmh / MH	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Opera Mail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh2 | Outlook Express	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes Template:R	Template:No Template:R	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Pegasus Mail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Yes (sending is broken)	Template:Dunno	Template:No	Template:No	Template:No
Template:Rh2 | Pine	Template:Partial	Template:Yes	Template:Yes	Template:No	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes (with Pine Privacy Guard)	Template:No	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Pocomail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | RoundCube	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes (depends on antivirus)	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | SeaMonkey Mail & Newsgroups	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Yes Template:R	Template:Yes Template:R	Template:Yes	Template:Yes	Template:Dunno	Template:Yes
Template:Rh | SquirrelMail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes (depends on antivirus)	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Sylpheed	Template:No Template:R	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:No	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | The Bat!	Template:Yes	Template:Yes	Template:Yes Template:R	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Partial Template:R	Template:Partial Template:R	Template:Yes Template:R
Template:Rh | Trojitá	Template:Partial	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:No	Template:Partial	Template:Partial	Template:Partial	Template:Partial	Template:Partial
Template:Rh2 | Turnpike	Template:Partial	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Windows Live Mail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Windows Mail	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | YAM	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:No	Template:No	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Zimbra	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes (depends on antivirus)	Template:Yes	Template:Dunno	Template:Dunno	Template:No	Template:Dunno	Template:Dunno	Template:Dunno
Client	rowspan="2" Template:Verth	rowspan="2" Template:Verth	rowspan="2" Template:Verth	Junk filtering		rowspan="2" Template:Verth	rowspan="2" Template:Verth	rowspan="2" Template:Verth	PGP support		S/MIME support
	local	server- side	inline	PGP/MIME or OpenPGP	protocol	OCSP	CRL	certificates on tokens, smartcards support

Messages features

Client	Label messages				Reformat received messages		rowspan="2" Template:Verth	Composing messages			Native images preview					rowspan="2" Template:Verth	Native documents preview
	Template:Verth	Template:Verth	Template:Verth	Template:Verth	Template:Verth	Template:Verth	Template:Verth	Template:Verth	Template:Verth	jpeg	gif	bmp	png	others	txt	pdf	doc	xls	odt	ods	others
Template:Rh | Alpine	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Becky! Internet Mail	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Canary Mail	Template:Dunno	Template:Dunno	Template:No	Template:No	Template:No	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes
Template:Rh | Citadel	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Claws Mail	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Courier	Template:Yes	Template:Yes	Template:No	Template:No	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Yes	Template:Dunno	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Dunno
Template:Rh | Elm	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | eM Client	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | EmailTray	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:Dunno
Template:Rh2 | Eudora	Template:Yes	Template:Yes	Template:No	Template:No	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Evolution	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:No	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Gnus	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | GroupWise	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno
Template:Rh | Hiri	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:No	Template:No	Template:No	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | i.Scribe / InScribe	Template:Yes	Template:No	Template:No	Template:Yes	Template:No	Template:No	Template:No	Template:Yes Template:R	Template:Yes	Template:Yes	Template:Yes Template:R	Template:Yes	Template:Yes	Template:Yes Template:R	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | HCL Notes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | KMail	Template:Yes <ref>{{#invoke:citation/CS1|citation	CitationClass=web }}</ref>	Template:Yes	Template:No	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Mailbird	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:Dunno
Template:Rh | Mailpile	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Microsoft Entourage	Template:Yes	Template:Yes	Template:Dunno	Template:Yes Template:R	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Microsoft Office Outlook	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	PowerPoint
Template:Rh2 | Mozilla Mail & Newsgroups	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Mozilla Thunderbird	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Partial<ref>{{#invoke:citation/CS1|citation	CitationClass=web }}</ref>	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes Template:R	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes Template:R	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh2 | Mulberry	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Mutt	Template:Yes	Template:Yes	Template:No	Template:No	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Netscape Messenger	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Netscape Messenger 9	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | nmh / MH	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Opera Mail	Template:Yes	Template:Yes	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh2 | Outlook Express	Template:No	Template:Yes	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Pegasus Mail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:No Template:R	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:N/A	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Yes
Template:Rh2 | Pine	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:No	Template:Yes Template:R	Template:Dunno	Template:Yes Template:R	Template:Yes	Template:Dunno	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Pocomail	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | RoundCube	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno
Template:Rh | SeaMonkey Mail & Newsgroups	Template:Yes	Template:Yes	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | SquirrelMail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno
Template:Rh | Sylpheed	Template:Yes	Template:Yes	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Dunno
Template:Rh | The Bat!	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | Trojitá	Template:No	Template:Yes	Template:Dunno	Template:Dunno	Template:No	Template:No	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Yes
Template:Rh2 | Turnpike	Template:Yes	Template:Dunno	Template:Dunno	Template:No	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Windows Live Mail	Template:No	Template:Yes	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Windows Mail	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | YAM	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes
Template:Rh | Zimbra	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Client	Label messages				Reformat received messages		rowspan="2" Template:Verth	Composing messages			Native images preview					rowspan="2" Template:Verth	Native documents preview
	Template:Verth	Template:Verth	Template:Verth	Template:Verth	Template:Verth	Template:Verth	Template:Verth	Template:Verth	Template:Verth	jpeg	gif	bmp	png	others	txt	pdf	doc	xls	odt	ods	others

Database, folders and customization

Client	Message file format	Encrypted database	Virtual folders	rowspan="2" Template:Verth	New mail notification				rowspan="2" Template:Verth	rowspan="2" Template:Verth	rowspan="2" Template:Verth	rowspan="2" Template:Verth	Indexed search	Search folders Template:R	IMAP
				Template:Verth	Template:Verth	Template:Verth	Template:Verth	Template:Verth	Template:Verth
Template:Rh | Alpine	mbox, mbx, MIX, maildir (with patches), MMDF, tenex, mtx, MH, mx, news, phile	Template:Dunno	Template:Yes	Template:Partial	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:No	Template:Dunno	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:No
Template:Rh | Becky! Internet Mail	mbox	Template:Dunno	Template:Dunno	Template:No	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes
Template:Rh | Canary Mail	Template:Proprietary	Template:Yes	Template:No	Template:No	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes
Template:Rh | Citadel	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Claws Mail	MH, mbox (plugin)	Template:No	Template:No	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:No	Template:Yes	Template:No
Template:Rh2 | Courier	Proprietary	Template:Yes (weak)	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes (layout)	Template:No	Template:Dunno	Template:No	Template:No	Template:Yes	Template:No	Template:Yes
Template:Rh | Elm	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | eM Client	Proprietary (sqlite)	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes
Template:Rh | EmailTray	Proprietary	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno
Template:Rh2 | Eudora	modified mbox	Template:No	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes Template:Specify	Template:Yes	Template:Yes	Template:Yes	Template:Dunno
Template:Rh | Evolution	maildir, mbox, MH	Template:No	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Partial	Template:Yes Template:R	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes
Template:Rh | Gnus	babyl, maildir, mbox, MMDF, news, rnews, SOUP, outlook, oe-dbx	Template:No	Template:Yes	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes Template:Refn	Template:Yes	Template:Yes	Template:Dunno
Template:Rh | GroupWise	Proprietary	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:No
Template:Rh | Hiri	Proprietary	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Yes	Template:No	Template:No	Template:No	Template:Yes	Template:Yes	Template:No	Template:No
Template:Rh | IBM Notes	Proprietary	Template:Yes<ref>{{#invoke:citation/CS1|citation	CitationClass=web }}</ref>	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes Template:R	Template:No	Template:Yes	Template:Yes	Template:Dunno	Template:No
Template:Rh | KMail	mbox, maildir	Template:No	Template:Yes	Template:No	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes
Template:Rh2 | Mailbird	Proprietary	Template:No	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Partial	Template:Yes	Template:Yes	Template:Yes
Template:Rh | Mailpile	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Microsoft Entourage	Proprietary (Personal Storage Table)	Template:Dunno	Template:Yes	Template:Partial Template:R	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Partial	Template:No	Template:No	Template:Partial Template:R	Template:Yes	Template:Yes	Template:Yes	Template:Yes
Template:Rh | Microsoft Office Outlook	Proprietary (Personal Storage Table)	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes Template:R	Template:Yes	Template:Dunno	Template:Yes
Template:Rh2 | Mozilla Mail & Newsgroups	mbox	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Mozilla Thunderbird	mbox, maildir	Template:No	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes Template:R	Template:Dunno	Template:No	Template:Dunno	Template:Yes (as of 3.0)	Template:Yes	Template:Yes	Template:Yes
Template:Rh2 | Mulberry	mbox Template:R	Template:Partial Template:R	Template:Partial Template:R	Template:Partial Template:R	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes Template:Specify	Template:Partial Template:R	Template:No	Template:Yes	Template:No
Template:Rh | Mutt	mbox, MMDF, MH, maildir	Template:Yes (with compressed folders patch<ref>{{#invoke:citation/CS1|citation	CitationClass=web }}</ref>)	Template:Dunno (has limit command)	Template:No	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes Template:Refn	Template:Yes Template:R	Template:Yes	Template:Yes
Template:Rh2 | Netscape Messenger	mbox	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Netscape Messenger 9	mbox	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | nmh / MH	MH	Template:No	Template:Yes	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Dunno
Template:Rh | Opera Mail	mbox, MH, Proprietary	Template:No	Template:Yes (all folders are virtual)	Template:No	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes
Template:Rh2 | Outlook Express	Proprietary	Template:No	Template:No	Template:No	Template:Dunno	Template:Yes	Template:No	Template:Yes	Template:No	Template:No	Template:Yes	Template:Dunno	Template:No	Template:Dunno	Template:Dunno	Template:Yes
Template:Rh | Pegasus Mail	Proprietary (mbox-like)	Template:No	Template:Yes	Template:No	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:No<ref>{{#invoke:citation/CS1|citation	CitationClass=web }}</ref>
Template:Rh2 | Pine	mbox, mbx, MIX, maildir (with patches), MMDF, tenex, mtx, MH, mx, news, phile	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:No
Template:Rh2 | Pocomail	mbox	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno
Template:Rh | RoundCube	[IMAP Server]	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno
Template:Rh | i.Scribe / InScribe	Proprietary (sqlite)	Template:No	Template:No	Template:No	Template:No	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Yes
Template:Rh | SeaMonkey Mail & Newsgroups	mbox	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes
Template:Rh | SquirrelMail	[IMAP Server]	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno
Template:Rh | Sylpheed	MH	Template:No	Template:Yes	Template:No	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:No	Template:No Template:R	Template:No Template:R	Template:Yes	Template:Dunno	Template:No
Template:Rh | The Bat!	Proprietary	Yes (AES 128 bit) (with Pro and Voyager version) Template:R	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes (PCRE 6.2)	Template:No	Template:Yes	Template:Yes	Template:Yes
Template:Rh | Trojitá	IMAP	Template:No	Template:No	Template:No	Template:No	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:No	Template:No	Template:Yes	Template:No	Template:Yes	Template:Yes
Template:Rh2 | Turnpike	Proprietary	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno
Template:Rh2 | Windows Live Mail	File System (.eml)	Template:No	Template:No	Template:No	Template:No	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno
Template:Rh2 | Windows Mail	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes
Template:Rh | YAM	mbox, maildir, oe-dbx	Template:No	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | Zimbra	File system	Template:No	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes
Client	Message file format	Encrypted database	Virtual folders	rowspan="2" Template:Verth	New mail notification				rowspan="2" Template:Verth	rowspan="2" Template:Verth	rowspan="2" Template:Verth	rowspan="2" Template:Verth	Indexed search	Search folders Template:R	IMAP
				Template:Verth	Template:Verth	Template:Verth	Template:Verth	Template:Verth	Template:Verth

Templates, scripts and programming languages

Client	Message templates						Message templates individual for	Support in message templates scripts, programming languages
	new	reply	forward	read confirmation	save	print		JavaScript	VBScript	PHP Scripts	Python	Regular expressions	Java	Other (specify)
Template:Rh | Alpine	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Any	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:No	Template:Dunno
Template:Rh | Becky! Internet Mail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Any account folder	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Canary Mail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	*
Template:Rh | Citadel	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Claws Mail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	account folder	Template:No	Template:No	Template:No	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes
Template:Rh2 | Courier	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Dunno	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | Elm	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | eM Client	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	account	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh2 | Eudora	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Any	Template:No	Template:No	Template:No	Template:No	Template:Yes	Template:No	Template:No
Template:Rh | Evolution	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Gnus	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:No	Template:No	Template:No	Template:No	Template:Yes	Template:No	Template:Yes
Template:Rh | GroupWise	Template:Yes	Template:No	Template:No	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Hiri	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Yes	Template:Yes	Template:Any	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh | i.Scribe / InScribe	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:Any	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Yes
Template:Rh | IBM Notes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:No	Template:No	Template:No	Template:Yes<ref>{{#invoke:citation/CS1|citation	CitationClass=web }}</ref>	Template:Yes	Template:Yes
Template:Rh | KMail	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:CNone	Template:Dunno	Template:No	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Mailpile	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Microsoft Entourage	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes
Template:Rh | Microsoft Office Outlook	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:No	Template:No	Template:Dunno	Template:No	Template:Dunno	Template:No	Template:Dunno
Template:Rh2 | Mozilla Mail & Newsgroups	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Mozilla Thunderbird	Template:Yes	Template:YesTemplate:R	Template:YesTemplate:R	Template:Yes	Template:Yes	Template:Yes	profile	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Mulberry	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Mutt	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:Dunno	Template:Dunno	Template:Any	Template:No	Template:No	Template:No	Template:No	Template:Yes	Template:Dunno	Template:Yes
Template:Rh2 | Netscape Messenger	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Netscape Messenger 9	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | nmh / MH	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Opera Mail	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:N/a	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No
Template:Rh2 | Outlook Express	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | Pegasus Mail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Pine	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Any	Template:Dunno	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:No	Template:Dunno
Template:Rh2 | Pocomail	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Yes	Template:Dunno	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Yes
Template:Rh | RoundCube	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Dunno
Template:Rh | SeaMonkey Mail & Newsgroups	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | SquirrelMail	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:No	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Dunno
Template:Rh | Sylpheed	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:Dunno
Template:Rh | The Bat!	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	account folder address book group contact	Template:Yes Template:R	Template:Yes Template:R	Template:Yes Template:R	Template:Yes Template:R	Template:Yes	Template:Yes	Template:Yes
Template:Rh2 | Turnpike	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Windows Live Mail	Template:YesTemplate:R	Template:YesTemplate:R	Template:Dunno	Template:YesTemplate:R	Template:Dunno	Template:Dunno	Template:Dunno	Template:Yes	Template:No	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh2 | Windows Mail	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno	Template:Dunno
Template:Rh | YAM	Template:Yes	Template:Yes	Template:Yes	Template:Dunno	Template:Yes	Template:Yes	Template:Dunno	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:Dunno	Template:Yes
Template:Rh | Zimbra	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Yes	Template:Any	Template:No	Template:No	Template:No	Template:No	Template:No	Template:Dunno	Template:Dunno
Client	Message templates						Message templates individual for	Support in message templates scripts, programming languages
	new	reply	forward	read confirmation	save	print		JavaScript	VBScript	PHP Scripts	Python	Regular expressions	Java	Other (specify)

Internationalization

Template:Disputed section The Bat! supports Email Address Internationalization (EAI).<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}Template:Better source needed</ref>

As of October 2016, email clients supporting SMTPUTF8 included Outlook 2016,<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> mail for iOS, and mail for Android.Template:Citation needed

See also

• Comparison of feed aggregators
• Comparison of browser engines
• Comparison of mail servers
• Comparison of webmail providers
• List of personal information managers
• Unicode and email
• Webmail

External links

• T&B : Email : Clients (of historical interest—last updated in 1999)
• Mail User Agents for Linux Based Platforms (includes many email clients not listed in the above tables)
• Remail - research by The Collaborative User Experience group at IBM