Message transfer agent (MTA) developed at the University of Cambridge. ([Source Code](https://git.exim.org/exim.git)) `GPL-3.0` `C/deb`
exim.org
Alternatives to
Postfix
Best alternatives to Postfix in 2026
Postfix is "Fast, easy to administer, and secure Sendmail replacement. `IPL-1.0` `C/deb`". If you are looking for an alternative to Postfix in 2026 — whether for pricing, features or compatibility reasons — mySelectas has curated the 12 best options available. The most popular alternatives include: Exim, Dovecot. All these solutions are listed in the Informatique category.
Quick comparison of Postfix alternatives
| # | Tool | Best for | Price |
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FAQ about Postfix alternatives
- What is the best alternative to Postfix in 2026?
- Based on our selection, Exim is the best alternative to Postfix in 2026. Message transfer agent (MTA) developed at the University of Cambridge. ([Source Code](https://git.exim.org/exim.git)) `GPL-3.0` `C/deb`. See our full ranking above to compare all options.
- Is Postfix free?
- Postfix is a paid tool. Several alternatives in our selection offer free or freemium versions.
- How many alternatives to Postfix are there?
- mySelectas has listed 12 alternatives to Postfix in the Informatique category. Our selection is updated regularly to include the best options available.