Atomic Mail vs Modoboa
On privacy it's Atomic Mail. On price it's Atomic Mail. On features it's Atomic Mail. Here's everything side by side, last checked 25 October 2026.
Which should you choose?
- Go for Atomic Mail if you'd like mail that's encrypted end to end without any setup.
- Modoboa suits you best if you want an address on your own domain; the choice of any mail app over IMAP; and your diary and address book in one place with your email.
| Feature | Atomic Mail | Modoboa |
|---|---|---|
| Overall | 2.5 | Not rated |
| Privacy | 2.0 | Not rated |
| Price | 3.5 | Not rated |
| Features | 1.5 | Not rated |
| Cheapest plan | Plus From $5 a month | Open source Free |
| Free plan | Yes, free plan | Yes, open source |
| Storage | Not confirmed | Not confirmed |
| Your own domain | No | ✓ Yes |
| End-to-end encryption | ✓ Built in | No |
| Company based in | Not confirmed | France |
| Your data is kept in | Not confirmed | Your own server |
| Founded | Unknown | Unknown |
| Free trial | Free plan | Free to download |
| Funded by advertising | No | No |
| Works in any mail app | No, its own apps only | ✓ IMAP and SMTP |
| Calendar and contacts | No | ✓ Yes |
| Aliases | 10 on free, 15 on Plus | Yes |
| Open-source apps | No | ✓ Yes |
| Sign up without ID | No | No |
| White label | Unknown | Unknown |
| Reader offer | None | None |
| Last checked | 25 October 2026 | 25 October 2026 |
Want to add another? Open this in the compare tool.
The key differences
- Cheapest plans: Atomic Mail Plus, From $5 a month. Modoboa Open source, Free.
- Atomic Mail has a free plan (free plan); Modoboa has a free plan (open source).
- Your mail is stored in Not confirmed with Atomic Mail, and in Your own server with Modoboa.
- The companies sit under different laws: Atomic Mail in Not confirmed, Modoboa in France.
- On encryption, Atomic Mail encrypts mail end to end, whereas Modoboa doesn't encrypt mail end to end.
- You can use your own domain with Modoboa, but not with Atomic Mail.
- Mail apps: Atomic Mail only works in its own apps; Modoboa works in any mail app over IMAP.
- Aliases: Atomic Mail offers 10 on free, 15 on plus, Modoboa yes.
Common questions
Can I use my own domain with Atomic Mail or Modoboa?
Only Modoboa does (Yes). With Atomic Mail your address stays on its own domain.
Where is my email stored with Atomic Mail and Modoboa?
Atomic Mail keeps it in Not confirmed. Modoboa keeps it in Your own server.
Can I use Atomic Mail and Modoboa in Apple Mail or Outlook?
Atomic Mail only works in its own apps. Modoboa works in any mail app over IMAP.
Price changes and news
- 22 October 2026 Atomic Mail: $4.99 a month yearly ($5.99 monthly), when I checked
The latest headlines: Atomic Mail news · Modoboa news.
Also worth a look
Atomic Mail vs mailbox.org · Modoboa vs mailbox.org · Atomic Mail vs Posteo · Modoboa vs Posteo · Atomic Mail vs Proton Mail · Modoboa vs Proton Mail
Moving your email
Moving between any two providers works the same way. Pick your two providers for the steps.