10

8

6

4

2


9.3

5.7

8.7
0.0

8.5

6.3

8.3

7.2

5.4
0.1

5.2

9.5

13 Mail Transfer Agents software solutions and projects

  • Postal

    9.3 5.7 Ruby
    A fully featured open source mail delivery platform for incoming & outgoing e-mail
  • MailHog

    8.7 0.0 Go
    Small Golang executable which runs an SMTP MTA gateway that accepts all mail and displays in web interface. Useful for debugging or development.
  • MailCatcher

    8.5 6.3 L5 Ruby
    Ruby gem that deploys a simply SMTP MTA gateway that accepts all mail and displays in web interface. Useful for debugging or development.
  • Haraka

    8.3 7.2 L3 JavaScript
    A high-performance, pluginable SMTP server written in JavaScript.
  • Maildrop

    5.4 0.1 CSS
    Disposable email SMTP server, also useful for development.
  • Exim

    5.2 9.5 L1 C
    Message transfer agent
  • OpenSMTPD

    4.4 9.2 L2 C
    Secure SMTP server implementation from the OpenBSD project.
  • Slimta

    3.2 3.3 L5 Python
    Mail Transfer Library built on Python.
  • Courier MTA

    1.8 6.4 L1 C
    Fast, scalable, enterprise mail/groupware server providing ESMTP, IMAP, POP3, webmail, mailing list, basic web-based calendaring and scheduling services.
  • Qmail

    1.0 0.0
    Secure Sendmail replacement.
  • Sendmail

    - -
    Message transfer agent
  • Postfix

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

    - -
    SMTP

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