10

8

6

4

2


9.1

9.6

9.1
0.0

8.2

6.1

8.0

7.5

5.5
0.0

5.2

9.2

14 Mail Transfer Agents software solutions and projects

  • Postal

    9.1 9.6 Ruby
    📮 A fully featured open source mail delivery platform for incoming & outgoing e-mail
  • MailHog

    9.1 0.0 Go
    Web and API based SMTP testing
  • The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
    Promo
  • MailCatcher

    8.2 6.1 L5 Ruby
    Catches mail and serves it through a dream.
  • Haraka

    8.0 7.5 L3 JavaScript
    A fast, highly extensible, and event driven SMTP server
  • Maildrop

    5.5 0.0 CSS
    Disposable email SMTP server, also useful for development.
  • Exim

    5.2 9.2 L1 C
    Exim Mail Transport Agent - source, testsuite and documentation
  • OpenSMTPD

    4.5 9.2 L2 C
    This is official OpenSMTPD Portable repository. Forks, pull requests and other contributions are welcome!
  • Slimta

    3.0 1.0 L5 Python
    Python libraries to send, receive, and queue email.
  • Courier MTA

    1.9 7.1 L1 C
    Courier Mail Server
  • Lightmeter

    1.0 0.0
    Lightmeter uses GitLab, not GitHub -- find repos at: https://gitlab.com/lightmeter
  • Qmail

    1.0 0.0
    Bind to different local ip addresses depending on the domain part of the sender argument when using `qmail-remote`.
  • Sendmail

    -
    Message transfer agent
  • chasquid

    -
    SMTP
  • Postfix

    -
    Fast, easy to administer, and secure Sendmail replacement.

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