Postal vs Nextcloud Mail
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?
Postal
Complete mail delivery platform for outgoing email
VS
Nextcloud Mail
IMAP webmail client integrated into Nextcloud
| Feature | Postal | Nextcloud Mail |
|---|---|---|
| Category | Mail Servers | Mail Servers |
| License | MIT | AGPL-3.0 |
| Language | Ruby | JavaScript |
| Setup difficulty | Hard | Easy |
| Min. RAM | 2,048 MB | 512 MB |
| Deployment | docker, bare-metal | source |
| GitHub stars | ★ 16,724 | ★ 1,014 |
| First released | 2017 | 2014 |
| Replaces | SendGrid, Mailgun, Postmark | Gmail |
Why pick each one
Choose Nextcloud Mail if…
- Released under the AGPL-3.0 license
- Easy to set up — beginner-friendly
- Active community (1k GitHub stars)
- Written in JavaScript
Frequently asked questions
Is Postal or Nextcloud Mail better?
Neither is universally better. Postal has the larger community, while Nextcloud Mail is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.
Are Postal and Nextcloud Mail free and open-source?
Yes. Postal is licensed under MIT and Nextcloud Mail under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run Postal and Nextcloud Mail with Docker?
Postal: yes. Nextcloud Mail: check the project docs for container support.