10

8

6

4

2


9.2

5.8

8.5
0.4

8.5

6.1

8.2

8.2

5.4
1.3

5.3

9.4

13 Mail Transfer Agents software solutions and projects

  • Postal

    9.2 5.8 Ruby
    A fully featured open source mail delivery platform for incoming & outgoing e-mail
  • MailHog

    8.5 0.4 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 6.1 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

    8.2 8.2 L3 JavaScript
    A high-performance, pluginable SMTP server written in JavaScript.
  • Maildrop

    5.4 1.3 CSS
    Disposable email SMTP server, also useful for development.
  • Exim

    5.3 9.4 L1 C
    Message transfer agent
  • OpenSMTPD

    4.3 9.2 L2 C
    Secure SMTP server implementation from the OpenBSD project.
  • Slimta

    3.3 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

    1.1 0.0
    Secure Sendmail replacement.
  • Sendmail

    - -
    Message transfer agent
  • Postfix

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

    - -
    SMTP

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