MailWhale vs Mailpit
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?
MailWhale
Self-hosted transactional email relay with API
VS
Mailpit
Email and SMTP testing tool with web UI
| Feature | MailWhale | Mailpit |
|---|---|---|
| Category | Mail Servers | Mail Servers |
| License | MIT | MIT |
| Language | Go | Go |
| Setup difficulty | Easy | Easy |
| Min. RAM | 64 MB | 64 MB |
| Deployment | docker, binary, source | docker, binary |
| GitHub stars | ★ 372 | ★ 10,067 |
| First released | 2021 | 2022 |
| Replaces | SendGrid, Postmark | Mailtrap, MailHog |
Why pick each one
Choose MailWhale if…
- Released under the MIT license
- Easy to set up — beginner-friendly
- First-class Docker support for quick deployment
- Written in Go
Frequently asked questions
Is MailWhale or Mailpit better?
Neither is universally better. Mailpit has the larger community; both share a easy setup difficulty, so the decision comes down to features and licensing.
Are MailWhale and Mailpit free and open-source?
Yes. MailWhale is licensed under MIT and Mailpit under MIT. Both can be self-hosted at no software cost.
Can I run MailWhale and Mailpit with Docker?
MailWhale: yes. Mailpit: yes.