Chatmail vs MailHog
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?
Chatmail
Minimal, instant-onboarding mail server for Delta Chat
VS
MailHog
Email testing tool with a fake SMTP server
| Feature | Chatmail | MailHog |
|---|---|---|
| Category | Mail Servers | Mail Servers |
| License | MPL-2.0 | MIT |
| Language | Python | Go |
| Setup difficulty | Medium | Easy |
| Min. RAM | 512 MB | 64 MB |
| Deployment | docker, bare-metal, source | docker, binary, source |
| GitHub stars | ★ 476 | ★ 16,107 |
| First released | 2023 | 2014 |
| Replaces | Mailtrap |
Why pick each one
Choose Chatmail if…
- Released under the MPL-2.0 license
- First-class Docker support for quick deployment
- Written in Python
- Lightweight — runs in 512 MB RAM
Choose MailHog if…
- Released under the MIT license
- Easy to set up — beginner-friendly
- First-class Docker support for quick deployment
- Mature project with 16.1k GitHub stars
Frequently asked questions
Is Chatmail or MailHog better?
MailHog is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider Chatmail if its specific feature set fits your needs better.
Are Chatmail and MailHog free and open-source?
Yes. Chatmail is licensed under MPL-2.0 and MailHog under MIT. Both can be self-hosted at no software cost.
Can I run Chatmail and MailHog with Docker?
Chatmail: yes. MailHog: yes.