Postfix
Software
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Postfix is a free and open-source mail transfer agent that routes and delivers electronic mail.
It is released under the IBM Public License 1.0 which is a free software license. Alternatively, starting with version 3.2.5, it is available under the... Wikipedia
Programming language: C
Configuration location: /etc/postfix/main.
Developer(s): Venema and many others
Initial release: December 14, 1998; 25 years ago
License: IBM Public License or Eclipse Public License
Original author(s): Wietse Venema at the IBM Thomas J. Watson Research Center
Stable release: 3.9.0 / March 6, 2024; 47 days ago