chasquid vs Postal
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?
chasquid
Simple, easy-to-configure SMTP server
VS
Postal
Complete mail delivery platform for outgoing email
| Feature | chasquid | Postal |
|---|---|---|
| Category | Mail Servers | Mail Servers |
| License | Apache-2.0 | MIT |
| Language | Go | Ruby |
| Setup difficulty | Medium | Hard |
| Min. RAM | 128 MB | 2,048 MB |
| Deployment | docker, binary, source | docker, bare-metal |
| GitHub stars | ★ 977 | ★ 16,724 |
| First released | 2016 | 2017 |
| Replaces | Google Workspace | SendGrid, Mailgun, Postmark |
Why pick each one
Choose chasquid if…
- Released under the Apache-2.0 license
- First-class Docker support for quick deployment
- Written in Go
- Tiny footprint — runs in 128 MB RAM
Frequently asked questions
Is chasquid or Postal better?
Neither is universally better. Postal has the larger community, while chasquid is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are chasquid and Postal free and open-source?
Yes. chasquid is licensed under Apache-2.0 and Postal under MIT. Both can be self-hosted at no software cost.
Can I run chasquid and Postal with Docker?
chasquid: yes. Postal: yes.