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Self-hosted Communication - Email - Mail Transfer Agents

9 projects

9 self-hostable, open-source communication - email - mail transfer agents tools you can run on your own hardware — no SaaS lock-in. Ranked by our Recommended score, a quality blend of deployability, maintenance, security signals, popularity and metadata confidence (not raw stars). Each listing shows exactly how hard it is to self-host and what it depends on.

Haraka

Communication - Email - Mail Transfer Agents·JavaScript

Fast, highly extensible, and event driven SMTP server.

Manual setup
5.6kActive

OpenSMTPD

Communication - Email - Mail Transfer Agents·C

Secure SMTP server implementation from the OpenBSD project.

Manual setup
586Active

DragonFly

Communication - Email - Mail Transfer Agents·C

A small MTA for home and office use.

Manual setup
265Active

chasquid

Communication - Email - Mail Transfer Agents·Go

SMTP (email) server with a focus on simplicity, security, and ease of operation.

Manual setup
0Unknown

Courier MTA

Communication - Email - Mail Transfer Agents·C

Fast, scalable, enterprise mail/groupware server providing ESMTP, IMAP, POP3, webmail, mailing list, basic…

Manual setup
0Unknown

EmailRelay

Communication - Email - Mail Transfer Agents·C++

A small and easy to configure SMTP and POP3 server for Windows and Linux.

Manual setup
0Unknown

Exim

Communication - Email - Mail Transfer Agents·C

Message transfer agent (MTA) developed at the University of Cambridge.

Manual setup
0Unknown

Postfix

Communication - Email - Mail Transfer Agents·C

Fast, easy to administer, and secure Sendmail replacement.

Manual setup
0Unknown

Sendmail

Communication - Email - Mail Transfer Agents·C

Message transfer agent (MTA).

Manual setup
0Unknown

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