listmonk vs SquirrelMail
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?
listmonk
Self-hosted newsletter and mailing list manager
VS
SquirrelMail
Another browser-based IMAP client
| Feature | listmonk | SquirrelMail |
|---|---|---|
| Category | Mail Servers | Mail Servers |
| License | AGPL-3.0 | GPL-2.0 |
| Language | Go | PHP |
| Setup difficulty | Easy | Medium |
| Min. RAM | 512 MB | 512 MB |
| Deployment | docker, binary, source | bare-metal |
| GitHub stars | ★ 22,670 | — |
| First released | 2020 | 2020 |
| Replaces | Mailchimp, Sendinblue | — |
Why pick each one
Choose SquirrelMail if…
- Released under the GPL-2.0 license
- Written in PHP
- Lightweight — runs in 512 MB RAM
Frequently asked questions
Is listmonk or SquirrelMail better?
listmonk is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider SquirrelMail if its specific feature set fits your needs better.
Are listmonk and SquirrelMail free and open-source?
Yes. listmonk is licensed under AGPL-3.0 and SquirrelMail under GPL-2.0. Both can be self-hosted at no software cost.
Can I run listmonk and SquirrelMail with Docker?
listmonk: yes. SquirrelMail: check the project docs for container support.