Communication - Email - Mail Transfer Agents#
Mail Transfer Agents (MTAs) - SMTP servers.
Software#
This page lists all projects in this category. Use the index of all projects, the sidebar, or click on tags to browse other categories.
chasquid#
SMTP (email) server with a focus on simplicity, security, and ease of operation.
★? ? Go Apache-2.0
Courier MTA#
Fast, scalable, enterprise mail/groupware server providing ESMTP, IMAP, POP3, webmail, mailing list, basic web-based calendaring and scheduling services.
DragonFly#
Small MTA for home and office use. Works on Linux and FreeBSD.
★266 2026-08-30 C BSD-3-Clause
EmailRelay#
Small and easy to configure SMTP and POP3 server for Windows and Linux.
Exim#
Message transfer agent (MTA) developed at the University of Cambridge.
Haraka#
Fast, highly extensible, and event driven SMTP server.
OpenSMTPD#
Secure SMTP server implementation from the OpenBSD project.
Postfix#
Fast, easy to administer, and secure Sendmail replacement.
Sendmail#
Message transfer agent (MTA).