Posteo vs Modoboa
On privacy it's Posteo. On price it's Posteo. On features it's Posteo. Here's everything side by side, last checked 25 October 2026.
Posteo or Modoboa: which should you choose?
- Go for Posteo if you'd like your mailbox stored in Germany and to sign up without proving who you are.
- Modoboa suits you best if you want a free plan before you pay anything and to use your own domain, like you@yourname.co.uk.
| Feature | Posteo | Modoboa |
|---|---|---|
| Overall | 4.5 | Not rated |
| Privacy | 4.5 | Not rated |
| Price | 5.0 | Not rated |
| Features | 3.0 | Not rated |
| Cheapest plan | Posteo €1 a month | Open source Free |
| Free plan | No | Yes, open source |
| Storage | 4 GB | Not confirmed |
| Your own domain | No | ✓ Yes |
| End-to-end encryption | Optional (PGP or encrypted storage) | No |
| Company based in | Germany | France |
| Your data is kept in | Germany | Your own server |
| Founded | 2009 | Unknown |
| Free trial | No, €1 a month from the start | Free to download |
| Funded by advertising | No | No |
| Works in any mail app | ✓ IMAP and SMTP | ✓ IMAP and SMTP |
| Calendar and contacts | ✓ Yes | ✓ Yes |
| Aliases | Yes (posteo.de only) | Yes |
| Open-source apps | ✓ Yes | ✓ Yes |
| Sign up without ID | ✓ Yes | No |
| White label | No | Unknown |
| Reader offer | None | None |
| Last checked | 22 October 2026 | 25 October 2026 |
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Where they differ
- Cheapest plans: Posteo Posteo, €1 a month. Modoboa Open source, Free.
- Posteo has no free plan; Modoboa has a free plan (open source).
- Space: Posteo gives 4 GB of storage, Modoboa storage not confirmed.
- Your mail is stored in Germany with Posteo, and in Your own server with Modoboa.
- The companies sit under different laws: Posteo in Germany, Modoboa in France.
- On encryption, Posteo offers optional encryption (PGP or encrypted storage), whereas Modoboa doesn't encrypt mail end to end.
- You can use your own domain with Modoboa, but not with Posteo.
- Aliases: Posteo offers yes (posteo.de only), Modoboa yes.
Common questions
Can I use my own domain with Posteo or Modoboa?
Only Modoboa does (Yes). With Posteo your address stays on its own domain.
Where is my email stored with Posteo and Modoboa?
Posteo keeps it in Germany. Modoboa keeps it in Your own server.
Recent price changes
No price changes for either since 22 October 2026. I check regularly and add any change here with its date.
The latest headlines: Posteo news · Modoboa news.
Alternatives to Posteo and Modoboa
Posteo vs Tuta · Modoboa vs Tuta · Posteo vs mailbox.org · Modoboa vs mailbox.org · Posteo vs Proton Mail · Modoboa vs Proton Mail
Moving your email
Moving to Posteo · Moving from Posteo. Or see all my switching guides.