Exim alternatives and similar software solutions

Based on the "Mail Transfer Agents" category.
Alternatively, view Exim alternatives based on common mentions on social networks and blogs.

Postal

9.2 8.0 Exim VS Postal

✉️ A fully featured open source mail delivery platform for incoming & outgoing e-mail
MailHog

9.1 0.0 Exim VS MailHog

Web and API based SMTP testing

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MailCatcher

8.5 7.5 L5 Exim VS MailCatcher

Catches mail and serves it through a dream.
Haraka

8.2 7.1 L3 Exim VS Haraka

A fast, highly extensible, and event driven SMTP server
Maildrop

5.5 0.0 Exim VS Maildrop

Disposable email SMTP server, also useful for development.
OpenSMTPD

4.6 6.8 L2 Exim VS OpenSMTPD

This is official OpenSMTPD Portable repository. Forks, pull requests and other contributions are welcome!
Slimta

3.2 0.0 L5 Exim VS Slimta

Python libraries to send, receive, and queue email.
Courier MTA

2.0 6.1 L1 Exim VS Courier MTA

Courier Mail Server
Lightmeter

1.0 0.0 Exim VS Lightmeter

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

1.0 0.0 Exim VS Qmail

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

- Exim VS Sendmail

Message transfer agent
chasquid

- Exim VS chasquid

SMTP
Postfix

- Exim VS Postfix

Fast, easy to administer, and secure Sendmail replacement.