PostfixAdmin vs Mailpit
A side-by-side comparison of two self-hosted mail servers options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
PostfixAdmin
Web interface for managing Postfix mail domains
VS
Mailpit
Email and SMTP testing tool with web UI
| Feature | PostfixAdmin | Mailpit |
|---|---|---|
| Category | Mail Servers | Mail Servers |
| License | GPL-2.0 | MIT |
| Language | PHP | Go |
| Setup difficulty | Medium | Easy |
| Min. RAM | 256 MB | 64 MB |
| Deployment | docker, bare-metal, source | docker, binary |
| GitHub stars | ★ 1,251 | ★ 10,067 |
| First released | 2003 | 2022 |
| Replaces | cPanel Email | Mailtrap, MailHog |
Why pick each one
Choose PostfixAdmin if…
- Released under the GPL-2.0 license
- First-class Docker support for quick deployment
- Active community (1.3k GitHub stars)
- Written in PHP
Frequently asked questions
Is PostfixAdmin or Mailpit better?
Mailpit is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider PostfixAdmin if its specific feature set fits your needs better.
Are PostfixAdmin and Mailpit free and open-source?
Yes. PostfixAdmin is licensed under GPL-2.0 and Mailpit under MIT. Both can be self-hosted at no software cost.
Can I run PostfixAdmin and Mailpit with Docker?
PostfixAdmin: yes. Mailpit: yes.