Mautic vs Nullmailer
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?
Mautic
Open-source marketing automation platform
VS
Nullmailer
Simple relay-only mail transfer agent
| Feature | Mautic | Nullmailer |
|---|---|---|
| Category | Mail Servers | Mail Servers |
| License | GPL-3.0 | GPL-2.0 |
| Language | PHP | C++ |
| Setup difficulty | Hard | Easy |
| Min. RAM | 2,048 MB | 16 MB |
| Deployment | docker, bare-metal, source | bare-metal, source |
| GitHub stars | ★ 10,305 | ★ 199 |
| First released | 2014 | 2000 |
| Replaces | HubSpot, Marketo, Mailchimp | Sendmail |
Why pick each one
Frequently asked questions
Is Mautic or Nullmailer better?
Neither is universally better. Mautic has the larger community, while Nullmailer is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.
Are Mautic and Nullmailer free and open-source?
Yes. Mautic is licensed under GPL-3.0 and Nullmailer under GPL-2.0. Both can be self-hosted at no software cost.
Can I run Mautic and Nullmailer with Docker?
Mautic: yes. Nullmailer: check the project docs for container support.