Fast, easy to administer, and secure Sendmail replacement. `IPL-1.0` `C/deb`
postfix.org
Alternatives to
OpenSMTPD
Best alternatives to OpenSMTPD in 2026
OpenSMTPD is "Secure SMTP server implementation from the OpenBSD project. ([Source Code](https://github.com/OpenSMTPD/OpenSMTPD/)) `ISC` `C/deb`". If you are looking for an alternative to OpenSMTPD in 2026 — whether for pricing, features or compatibility reasons — mySelectas has curated the 12 best options available. The most popular alternatives include: Postfix, Exim. All these solutions are listed in the Informatique category.
Quick comparison of OpenSMTPD alternatives
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FAQ about OpenSMTPD alternatives
- What is the best alternative to OpenSMTPD in 2026?
- Based on our selection, Postfix is the best alternative to OpenSMTPD in 2026. Fast, easy to administer, and secure Sendmail replacement. `IPL-1.0` `C/deb`. See our full ranking above to compare all options.
- Is OpenSMTPD free?
- OpenSMTPD is a paid tool. Several alternatives in our selection offer free or freemium versions.
- How many alternatives to OpenSMTPD are there?
- mySelectas has listed 12 alternatives to OpenSMTPD in the Informatique category. Our selection is updated regularly to include the best options available.