Modoboa vs PostfixAdmin
A side-by-side comparison of two self-hosted mail servers options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Modoboa | PostfixAdmin |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 88 · Excellent | 83 · Excellent |
| Category | Mail Servers | Mail Servers |
| License | ISC | GPL-2.0 |
| Language | Python | PHP |
| Setup difficulty | Medium | Medium |
| Min. RAM | 2,048 MB | 256 MB |
| Deployment | docker, bare-metal | docker, bare-metal, source |
| GitHub stars | ★ 3,538 | ★ 1,257 |
| First released | 2010 | 2003 |
| Replaces | Google Workspace, cPanel Email | cPanel Email |
What are Modoboa and PostfixAdmin?
Modoboa
Modoboa is a mail hosting and management platform that provides a clean web interface on top of Postfix and Dovecot. It includes antispam, webmail, calendar, and DNS health checks.
- Modern mail administration UI
- Amavis and Rspamd antispam
- Built-in webmail and calendar
- DNSBL and configuration health checks
PostfixAdmin
PostfixAdmin is a web-based administration tool for managing Postfix mail servers, including virtual domains, mailboxes, and aliases. It stores configuration in a SQL database.
- Manage virtual domains and mailboxes
- Alias and forwarding management
- Vacation autoresponders
- MySQL or PostgreSQL backend
Modoboa vs PostfixAdmin: key differences
Modoboa is written in Python, while PostfixAdmin is built with PHP. Licensing differs — ISC for Modoboa versus GPL-2.0 for PostfixAdmin. PostfixAdmin is the lighter option, starting around 256 MB of RAM against 2,048 MB for Modoboa. PostfixAdmin is the more established project (first released 2003), while Modoboa arrived in 2010. Modoboa has the considerably larger community, at 3,538 GitHub stars versus 1,257.
Why pick each one
Choose Modoboa if…
- Friendly management interface
- Good monitoring features
Watch out for
- Installer can be finicky
- Multiple components to maintain
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
Watch out for
- Administration tool only
- Dated interface
Frequently asked questions
Is Modoboa or PostfixAdmin better?
Neither is universally better. Modoboa has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Modoboa and PostfixAdmin free and open-source?
Yes. Modoboa is licensed under ISC and PostfixAdmin under GPL-2.0. Both can be self-hosted at no software cost.
Can I run Modoboa and PostfixAdmin with Docker?
Modoboa: yes. PostfixAdmin: yes.
Which is lighter on resources, Modoboa or PostfixAdmin?
PostfixAdmin has the smaller minimum footprint at 256 MB of RAM, compared to about 2,048 MB for Modoboa. Real-world usage depends on library size, user count, and enabled features.