mailbox.org vs GMX
In short: mailbox.org wins on privacy, GMX wins on price, and mailbox.org wins on features. The full comparison is below, last checked 25 October 2026.
Should you pick mailbox.org or GMX?
- mailbox.org suits you best if you want a provider with no advertising business behind it; to use your own domain, like you@yourname.co.uk; and open-source apps.
- GMX suits you best if you want a mailbox that costs nothing; to try it free first; and more space for your mail: 65 GB.
| Feature | mailbox.org | GMX |
|---|---|---|
| Overall | 4.5 | 3.5 |
| Privacy | 4.5 | 2.0 |
| Price | 4.0 | 5.0 |
| Features | 5.0 | 4.0 |
| Cheapest plan | Standard €3 a month, yearly (from summer 2026) | Free Free (paid plans only for German and Austrian residents) |
| Free plan | No (30-day trial) | Yes, with adverts |
| Storage | 20 GB | 65 GB |
| Your own domain | ✓ Yes | No |
| End-to-end encryption | Optional (PGP or encrypted storage) | No |
| Company based in | Germany | Germany |
| Your data is kept in | Germany | Germany (European data centres) |
| Founded | 2014 | 1997 |
| Free trial | 30 days free | Free |
| Funded by advertising | No | Yes, or its parent company is |
| Works in any mail app | ✓ IMAP and SMTP | ✓ IMAP and SMTP |
| Calendar and contacts | ✓ Yes | ✓ Yes |
| Aliases | Yes | Up to 10 addresses |
| Open-source apps | ✓ Yes | No |
| Sign up without ID | ✓ Yes | No |
| White label | No | No |
| Reader offer | None | None |
| Last checked | 22 October 2026 | 25 October 2026 |
Want to add another? Open this in the compare tool.
The key differences
- mailbox.org's cheapest plan is Standard (€3 a month, yearly (from summer 2026)); GMX's is Free (Free (paid plans only for German and Austrian residents)).
- For free, mailbox.org gives you no free plan, and GMX a free plan (with adverts).
- mailbox.org comes with 20 GB of storage and GMX with 65 GB of storage.
- Your mail is stored in Germany with mailbox.org, and in Germany (European data centres) with GMX.
- mailbox.org offers optional encryption (PGP or encrypted storage); GMX doesn't encrypt mail end to end.
- mailbox.org lets you bring your own domain name; GMX doesn't.
- Only GMX is part of an advertising business.
- For extra addresses, mailbox.org has yes and GMX has up to 10 addresses.
mailbox.org and GMX: your questions
Which is more private, mailbox.org or GMX?
mailbox.org scores 4.5 out of 5 for privacy and GMX 2. mailbox.org gives you a provider with no advertising business behind it, open-source apps and to sign up without proving who you are.
Which is cheaper, mailbox.org or GMX?
GMX costs nothing to start (Free (paid plans only for German and Austrian residents)). mailbox.org's cheapest plan, Standard, is €3 a month, yearly (from summer 2026).
Do mailbox.org and GMX work with my own domain?
Only mailbox.org does (Yes). With GMX your address stays on its own domain.
Where do mailbox.org and GMX keep my email?
mailbox.org keeps it in Germany. GMX keeps it in Germany (European data centres).
Price changes and news
- 1 September 2026 mailbox.org: €3.00 (announced 15 July 2026)
- 1 June 2026 mailbox.org: €2.50
The latest headlines: mailbox.org news · GMX news.
Alternatives to mailbox.org and GMX
mailbox.org vs Posteo · GMX vs Posteo · mailbox.org vs Proton Mail · GMX vs Proton Mail · mailbox.org vs Tuta · GMX vs Tuta
Switching between them
Moving to mailbox.org · Moving from mailbox.org. Or see all my switching guides.