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GNUMail on Mac OS X
Original author(s) Ludovic Marcotte and others
Developer(s) Collaboration World
Stable release
1.2.2 / October 26, 2014; 23 months ago (2014-10-26)[1]
Written in Objective-C
Operating system Cross-platform (OpenStep)
Available in multiple languages
Type E-mail client
License GNU General Public License
Website[dead link]

GNUMail (aka is a free and open source, cross-platform mail client for GNUstep and Cocoa. It is the official[2] mail client of GNUstep and is also used in Étoilé. It was inspired by NeXTMail (NeXT's, the predecessor of Apple Mail. GNUMail is based on the mail handling framework Pantomime.

Furthermore, GNUMail demonstrates that it is possible to develop cross platform programs for GNUstep and Cocoa.[3]


  • Supported protocols: POP3 (with APOP support), IMAP4 and UNIX; SMTP
  • Supports TLS with all protocols
  • Mail spool file support for receiving
  • File formats for local saving: Maildir, Berkeley mbox
  • Filters for incoming and outgoing mail which support regular expressions
  • Thread Arcs for email thread visualization and navigation
  • Find Panel supporting regular expressions
  • Ability to add custom mailheaders
  • Native support for PGP/GPG encryption

See also[edit]


  1. ^ "ANN: GNUMail 1.2.2". Retrieved 2014-11-16. 
  2. ^ ""GNUMail" article in GNUstepWiki". Retrieved 2008-05-02. 
  3. ^ ", the portability evidence". Retrieved 2008-05-01. 

External links[edit]