Posteo vs 20i
On privacy it's Posteo. On price it's Posteo. On features it's 20i. Here's everything side by side, last checked 25 October 2026.
Should you pick Posteo or 20i?
- Go for Posteo if you'd like apps whose code is public and to sign up without proving who you are.
- 20i suits you best if you want to use your own domain, like you@yourname.co.uk and 10 GB of storage.
| Feature | Posteo | 20i |
|---|---|---|
| Overall | 4.5 | Not rated |
| Privacy | 4.5 | 2.5 |
| Price | 5.0 | Not rated |
| Features | 3.0 | 4.5 |
| Cheapest plan | Posteo €1 a month | Email hosting Not confirmed |
| Free plan | No | No |
| Storage | 4 GB | 10 GB |
| Your own domain | No | ✓ Yes |
| End-to-end encryption | Optional (PGP or encrypted storage) | No |
| Company based in | Germany | United Kingdom |
| Your data is kept in | Germany | United Kingdom |
| Founded | 2009 | Unknown |
| Free trial | No, €1 a month from the start | Unknown |
| 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 | No |
| Sign up without ID | ✓ Yes | No |
| White label | No | ✓ Yes |
| Reader offer | None | None |
| Last checked | 22 October 2026 | 25 October 2026 |
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Where they differ
- On price: Posteo Posteo at €1 a month, against 20i Email hosting at Not confirmed.
- Space: Posteo gives 4 GB of storage, 20i 10 GB of storage.
- Posteo keeps your mail in Germany, while 20i keeps it in the United Kingdom.
- The companies sit under different laws: Posteo in Germany, 20i in United Kingdom.
- On encryption, Posteo offers optional encryption (PGP or encrypted storage), whereas 20i doesn't encrypt mail end to end.
- You can use your own domain with 20i, but not with Posteo.
- Aliases: Posteo offers yes (posteo.de only), 20i yes.
Posteo and 20i: your questions
Is Posteo more private than 20i?
Posteo scores 4.5 out of 5 for privacy and 20i 2.5. Posteo gives you apps whose code is public and to sign up without proving who you are.
Can I use my own domain with Posteo or 20i?
Only 20i does (Yes). With Posteo your address stays on its own domain.
Where is my email stored with Posteo and 20i?
Posteo keeps it in Germany. 20i keeps it in the United Kingdom.
Prices and the latest news
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 · 20i news.
Also worth a look
Posteo vs mailbox.org · 20i vs mailbox.org · Posteo vs Proton Mail · 20i vs Proton Mail · Posteo vs Tuta · 20i vs Tuta
Moving your email
Moving to Posteo · Moving from Posteo. Or see all my switching guides.