Editing Procmail (section)

{{More citations needed|date=April 2023}}
{{lowercase|procmail}}
{{Infobox software
| name = procmail
| author = Stephen R. van den Berg
| developer = Philip A. Guenther
| released = December 7, 1990
| latest release version = 3.24
| latest release date = March 2, 2022
| operating system = Any [[Unix-like]]
| platform = [[Cross-platform]]
| genre = [[Mail filter]]
| license = [[GNU General Public License|GPL]] or [[Artistic License]]
| discontinued = no
}}

'''procmail''' is an [[email]] server software component — specifically, a [[message delivery agent]] (MDA).  It was one of the earliest [[mail filter]] programs.  It is typically used in [[Unix-like]] mail systems, using the [[mbox]] and [[Maildir]] storage formats.

procmail was first developed in 1990, by Stephen R. van den Berg.<ref name="README"/>  Philip Guenther took over maintainership for a number of years, but relinquished the role in 2014.<ref name="openbsd-ports-marc"/>  The software remained unmaintained for several years, and was believed to be defunct.<ref name="death"/>  In 2020 May, Stephen van den Berg resumed maintenance again.<ref name="debbug"/>  The program has since seen multiple releases and bug-fixes.