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Comparison of email clients
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===Authentication support=== {{sort-under}} {| class="wikitable sortable sort-under sticky-header-multi" |- ! rowspan="2" |Client ! colspan="2" | Regular ! rowspan="2" {{verth|va=middle|MSN ([[NTLM]])<br/>browser login}} ! rowspan="2" {{verth|va=middle|Compuserve<br/>(RPA)}} ! rowspan="2" {{verth|va=middle|MD5 APOP {{r|group=Note|APOP}}}} ! colspan="3" | CRAM-HMAC<br/>{{r|group=Note|HMAC}} ! rowspan="2" {{verth|va=middle|DIGEST-MD5}} ! rowspan="2" {{verth|va=middle|SCRAM}} ! rowspan="2" {{verth|va=middle|with hardware token<br/>[[PKCS11|PKCS#11]]}} ! rowspan="2" {{verth|va=middle|Biometric}} ! rowspan="2" {{verth|va=middle|SMTP Auth {{r|group=Note|SMTPAUTH}}}} ! rowspan="2" {{verth|va=middle|[[X.509]]<br/>[[Client certificate]]}} ! rowspan="2" {{verth|va=middle|[[OAuth]]}} |- ! {{verth|va=middle|LOGIN}} ! {{verth|va=middle|PLAIN}} ! {{verth|va=middle|MD5}} ! {{verth|va=middle|SHA1}} ! {{verth|va=middle|RIPEMD}} |- ! {{rh}} | [[Alpine (email client)|Alpine]] | {{yes}} | {{yes}} | {{no}} | {{no}} | {{no}} | {{yes}} | {{no}} | {{no}} | {{no}} | {{dunno}} | {{no}} | {{no}} | {{yes}} | {{no}} | {{dunno}} |- ! {{rh}} | [[Apple Mail]] | {{yes}} | {{yes}} | {{no}} | {{no}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{yes}} | {{yes}} | {{yes}} | {{yes}} {{r|group=Note|AppleMailOAuth}} |- ! {{rh}} | [[Becky!|Becky! Internet Mail]] | {{yes}} | {{yes}} | {{yes}} | {{dunno}} | {{yes}} | {{yes}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{yes}} | {{yes}} | {{dunno}} |- ! {{rh}} | [[Canary Mail]] | {{yes}} | {{yes}} | {{no}} | {{no}} | {{no}} | {{yes}} | {{no}} | {{no}} | {{yes}} | {{yes}} | {{no}} | {{yes}} | {{yes}} | {{no}} | {{yes}} |- ! {{rh}} | [[Citadel/UX|Citadel]] | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} |- ! {{rh}} | [[Claws Mail]] | {{yes}} | {{yes}} | {{dunno}} | {{dunno}} | {{yes}} | {{yes}} | {{dunno}} | {{dunno}} | {{yes}} | {{yes}} | {{no}} | {{dunno}} | {{yes}} | {{no}} | {{yes}} |- ! {{rh2}} | [[Courier (email client)|Courier]] | {{yes}} | {{yes}} | {{yes}} | {{no}} | {{yes}} | {{yes}} | {{yes}} | {{no}} | {{yes}} | {{dunno}} | {{no}} | {{no}} | {{yes}} | {{yes}} | {{dunno}} |- ! {{rh}} | [[Elm (email client)|Elm]] | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} |- ! {{rh}} | [[eM Client]] | {{yes}} | {{yes}} | {{yes}} | {{no}} | {{no}} | {{yes}} | {{no}} | {{no}} | {{yes}} | {{dunno}} | {{no}} | {{no}} | {{yes}} | {{no}} | {{yes}} |- ! {{rh}} | [[EmailTray]] | {{yes}} | {{yes}} | {{dunno}} | {{dunno}} | {{yes}} | {{yes}} | {{yes}} | {{no}} | {{dunno}} | {{dunno}} | {{no}} | {{no}} | {{yes}} | {{no}} | {{dunno}} |- ! {{rh2}} | [[Eudora (email client)|Eudora]] | {{yes}} | {{yes}} | {{yes}} | {{yes}} | {{yes}} | {{yes}} | {{no}} | {{no}} | {{no}} | {{dunno}} | {{no}} | {{no}} | {{no}} | {{dunno}} | {{dunno}} |- ! {{rh}} | [[Evolution (software)|Evolution]] | {{yes}} | {{yes}} | {{yes}} | {{no}} | {{yes}} | {{yes}} | {{no}} | {{no}} | {{yes}} | {{dunno}} | {{no}} | {{no}} | {{yes}} | {{no}} | {{yes}} |- ! {{rh}} | [[Gnus]] | {{yes}} | {{yes}} | {{dunno}} | {{dunno}} | {{yes}} | {{yes}} | {{yes}} | {{dunno}} | {{yes}} | {{dunno}} | {{dunno}} | {{dunno}} | {{yes}} | {{dunno}} | {{dunno}} |- ! {{rh}} | [[GroupWise]] | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} |- ! {{rh}} | [[Hiri (email client)|Hiri]] | {{yes}} | {{yes}} | {{yes}} | {{no}} | {{no}} | {{no}} | {{no}} | {{no}} | {{no}} | {{dunno}} | {{no}} | {{no}} | {{no}} | {{no}} | {{yes}} |- ! {{rh}} | [[Scribe Mail|i.Scribe / InScribe]] | {{yes}} | {{yes}} | {{yes}} | {{no}} | {{yes}} | {{no}} | {{no}} | {{no}} | {{no}} | {{dunno}} | {{no}} | {{no}} | {{yes}} | {{no}} | {{yes}} |- ! {{rh}} | [[IBM Lotus Notes]] | {{yes}} | {{dunno}} | {{yes}} | {{no}} | {{no}} | {{no}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{yes}} | {{no}} | {{yes}} | {{dunno}} | {{dunno}} |- ! {{rh}} | [[KMail]] | {{yes}} | {{yes}} | {{yes}} | {{no}} | {{yes}} | {{yes}} | {{no}} | {{no}} | {{yes}} | {{dunno}} | {{no}} | {{no}} | {{yes}} | {{yes}} | {{dunno}} |- ! {{rh}} | [[Mailpile]] | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} |- ! {{rh2}} | [[Microsoft Entourage]] | {{yes}} | {{no}} | {{yes}} | {{dunno}} | {{dunno}} | {{Yes}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{Yes}} | {{dunno}} | {{Yes}} | {{Yes}} | {{dunno}} |- ! {{rh}} | [[Microsoft Office Outlook]] | {{yes}} | {{no}} | {{yes}} | {{no}} | {{no}} | {{no}} | {{no}} | {{no}} | {{no}} | {{dunno}} | {{no}} | {{no}} | {{yes}} | {{no}} | {{dunno}} |- ! {{rh2}} | [[Mozilla Mail & Newsgroups]] | {{yes}} | {{dunno}} | {{dunno}} | {{yes}} | {{dunno}} | {{yes}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} |- ! {{rh}} | [[Mozilla Thunderbird]] | {{yes}} | {{yes}} | {{yes}} | {{no}} | {{yes}} | {{yes}} | {{no}} | {{no}} | {{no}}<ref name="bugzilla.mozilla.org">{{Cite web|url=https://bugzilla.mozilla.org/show_bug.cgi?id=335924|title = 335924 - No authentication with DIGEST-MD5}}</ref> | {{dunno}} | {{yes}} | {{no}} | {{yes}} | {{yes}} | {{yes}} |- ! {{rh2}} | [[Mulberry (email client)|Mulberry]] | {{yes}} | {{yes}} | {{yes}} | {{no}} | {{no}} | {{yes}} | {{no}} | {{no}} | {{yes}} | {{dunno}} | {{no}} | {{no}} | {{yes}} | {{yes}} | {{dunno}} |- ! {{rh}} | [[Mutt (email client)|Mutt]] | {{yes}} | {{yes}} | {{yes}} | {{dunno}} | {{yes}} | {{yes}} | {{no}} | {{no}} | {{yes}} | {{dunno}} | {{no}} | {{no}} | {{no|1.5.15}} | {{yes}} | {{no|1.10.1}} |- ! {{rh2}} | [[Netscape Messenger]] | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} |- ! {{rh2}} | [[Netscape Messenger 9]] | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} |- ! {{rh}} | [[MH Message Handling System|nmh / MH]] | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} |- ! {{rh}} | Opera Mail | {{yes}} | {{yes}} | {{no}} | {{no}} | {{yes}} | {{yes}} | {{no}} | {{dunno}} | {{dunno}} | {{dunno}} | {{no}} | {{no}} | {{yes}} | {{yes}} | {{dunno}} |- ! {{rh2}} | [[Outlook Express]] | {{yes}} | {{no}} | {{yes}} | {{no}} | {{no}} | {{no}} | {{no}} | {{no}} | {{no}} | {{dunno}} | {{no}} | {{no}} | {{yes}} | {{no}} | {{dunno}} |- ! {{rh}} | [[Pegasus Mail]] | {{yes}} | {{dunno}} | {{no}} | {{no}} | {{yes}} | {{no}} | {{no}} | {{no}} | {{no}} | {{dunno}} | {{no}} | {{no}} | {{yes}} | {{yes}} | {{dunno}} |- ! {{rh2}} | [[Pine (email client)|Pine]] | {{yes}} | {{yes}} | {{no}} | {{no}} | {{no}} | {{yes}} | {{no}} | {{no}} | {{no}} | {{dunno}} | {{no}} | {{no}} | {{yes}} | {{no}} | {{dunno}} |- ! {{rh2}} | [[Pocomail]] | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} |- ! {{rh}} | [[RoundCube]] | {{yes}} | {{yes}} | {{dunno}} | {{dunno}} | {{yes}} | {{yes}} | {{yes}} | {{dunno}} | {{yes}} | {{dunno}} | {{yes}} | {{dunno}} | {{yes}} | {{dunno}} | {{dunno}} |- ! {{rh}} | [[SeaMonkey]] Mail & Newsgroups | {{yes}} | {{yes}} | {{yes}} | {{no}} | {{yes}} | {{yes}} | {{no}} | {{no}} | {{no}}<ref name="bugzilla.mozilla.org"/> | {{dunno}} | {{yes}} | {{no}} | {{yes}} | {{yes}} | {{dunno}} |- ! {{rh}} | [[SquirrelMail]] | {{yes}} | {{yes}} | {{dunno}} | {{dunno}} | {{yes}} | {{yes}} | {{yes}} | {{dunno}} | {{yes}} | {{dunno}} | {{yes}} | {{dunno}} | {{yes}} | {{dunno}} | {{dunno}} |- ! {{rh}} | [[Sylpheed]] | {{yes}} | {{yes}} | {{no}} | {{no}} | {{yes}} | {{yes}} | {{no}} | {{no}} | {{no}} | {{dunno}} | {{no}} | {{no}} | {{yes}} | {{no}} | {{no}} |- ! {{rh}} | [[The Bat!]] | {{yes}} | {{yes}} | {{yes}} | {{yes}} | {{yes}} | {{yes}} | {{no}} | {{no}} | {{no}} | {{dunno}} | {{yes}} {{r|group=Note|TheBat}} | {{yes}} {{r|group=Note|TheBat}} | {{yes}} | {{no}} | {{yes}} |- ! {{rh}} | [[Trojitá]] | {{yes}} | {{no}} | {{no}} | {{no}} | {{no}} | {{no}} | {{no}} | {{no}} | {{no}} | {{dunno}} | {{no}} | {{no}} | {{yes}} | {{no}} | {{dunno}} |- ! {{rh2}} | [[Turnpike (software)|Turnpike]] | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} |- ! {{rh2}} | [[Windows Live Mail]] | {{yes}} | {{no}} | {{yes}} | {{no}} | {{yes}} | {{no}} | {{no}} | {{no}} | {{no}} | {{dunno}} | {{no}} | {{no}} | {{no}} | {{no}} | {{no}} |- ! {{rh2}} | [[Windows Mail]] | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{yes}} {{r|group=Note|WindowsMailOAuth}} |- ! {{rh}} | [[YAM (Yet Another Mailer)|YAM]] | {{yes}} | {{yes}} | {{dunno}} | {{dunno}} | {{yes}} | {{yes}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{yes}} | {{yes|AmiSSL}} | {{dunno}} |- ! {{rh}} | [[Zimbra]] | {{yes}} | {{yes}} | {{dunno}} | {{dunno}} | {{yes}} | {{yes}} | {{dunno}} | {{dunno}} | {{dunno}} | {{dunno}} | {{yes}} | {{dunno}} | {{yes}} {{r|group=Note|Zimbra}} | {{dunno}} | {{dunno}} |-class="sortbottom" ! rowspan="2" |Client ! colspan="2" | Regular ! rowspan="2" {{verth|va=middle|MSN ([[NTLM]])<br/>browser login}} ! rowspan="2" {{verth|va=middle|Compuserve<br/>(RPA)}} ! rowspan="2" {{verth|va=middle|MD5 APOP {{r|group=Note|APOP}}}} ! colspan="3" | CRAM-HMAC<br/>{{r|group=Note|HMAC}} ! rowspan="2" {{verth|va=middle|DIGEST-MD5}} ! rowspan="2" {{verth|va=middle|SCRAM}} ! rowspan="2" {{verth|va=middle|with hardware token<br/>[[PKCS11|PKCS#11]]}} ! rowspan="2" {{verth|va=middle|Biometric}} ! rowspan="2" {{verth|va=middle|SMTP Auth {{r|group=Note|SMTPAUTH}}}} ! rowspan="2" {{verth|va=middle|SSL/TLS<br/>Client Certificate}} ! rowspan="2" {{verth|va=middle|OAUTH}} |-class="sortbottom" ! {{verth|va=middle|LOGIN}} ! {{verth|va=middle|PLAIN}} ! {{verth|va=middle|MD5}} ! {{verth|va=middle|SHA1}} ! {{verth|va=middle|RIPEMD}} |} {{reflist|group=Note|refs= <ref name=AppleMailOAuth>Minimum Mac OS version 10.11. Minimum iOS version 11.</ref> <ref name=APOP>Description: {{IETF RFC|1734}}</ref> <ref name=HMAC>Description: {{IETF RFC|2195}}</ref> <!-- <ref name=MailCRAM>[http://docs.info.apple.com/article.html?artnum=120103 10.1.3 Apple adds SSL and CRAM-MD5 support to Mail]</ref> <ref name=MailNTML>[http://www.apple.com/macosx/features/mail/ Apple supports NTLM v2 in Mail as of 10.4 release]</ref> --> <ref name=SMTPAUTH>Description: {{IETF RFC|2554}}</ref> <ref name=TheBat>Professional Edition.</ref> <ref name=WindowsMailOAuth>Windows 10 required.</ref> <ref name=Zimbra>[http://www.zimbra.com/desktop7/help/en_US/Zimbra_Mail_Help.htm#Getting_Started/Zimbra_User_Help.htm Zimbra Desktop supports SMTP auth, not sure about collaboration suite]</ref> }}
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