Fastmail vs GMX
They tie on privacy, GMX wins on price and Fastmail wins on features. Every fact below was checked on or before 25 October 2026.
Should you pick Fastmail or GMX?
- Fastmail is the better pick if you want email from a company that doesn't make money from adverts and an address on your own domain.
- Go for GMX if you'd like email without paying for it; a free plan before you pay anything; and more space for your mail: 65 GB.
| Feature | Fastmail | GMX |
|---|---|---|
| Overall | 3.0 | 3.5 |
| Privacy | 2.0 | 2.0 |
| Price | 3.5 | 5.0 |
| Features | 5.0 | 4.0 |
| Cheapest plan | Individual $5 a month, yearly | Free Free (paid plans only for German and Austrian residents) |
| Free plan | No | Yes, with adverts |
| Storage | 50 GB | 65 GB |
| Your own domain | ✓ Yes | No |
| End-to-end encryption | No | No |
| Company based in | Australia | Germany |
| Your data is kept in | EU (Amsterdam) for UK customers, with a US replica and US backups | Germany (European data centres) |
| Founded | 1999 | 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 | Masked email and aliases | Up to 10 addresses |
| Open-source apps | No | No |
| Sign up without ID | No | No |
| White label | No | No |
| Reader offer | Offer 10% off your first year, plus a free trial of up to 30 days | None |
| Last checked | 22 October 2026 | 25 October 2026 |
Want to add another? Open this in the compare tool.
Where they differ
- Cheapest plans: Fastmail Individual, $5 a month, yearly. GMX Free, Free (paid plans only for German and Austrian residents).
- Fastmail has no free plan; GMX has a free plan (with adverts).
- Space: Fastmail gives 50 GB of storage, GMX 65 GB of storage.
- Data location: EU (Amsterdam) for UK customers, with a US replica and US backups for Fastmail, Germany (European data centres) for GMX.
- The companies sit under different laws: Fastmail in Australia, GMX in Germany.
- You can use your own domain with Fastmail, but not with GMX.
- GMX (or its parent company) makes money from advertising; Fastmail doesn't.
- Aliases: Fastmail offers masked email and aliases, GMX up to 10 addresses.
Fastmail and GMX: your questions
Is Fastmail more private than GMX?
They score the same for privacy: 2 out of 5 each. The differences are in the details, such as where your mail is kept (the EU (Amsterdam) for UK customers, with a US replica and US backups for Fastmail, Germany (European data centres) for GMX).
Is Fastmail cheaper than GMX?
GMX costs nothing to start (Free (paid plans only for German and Austrian residents)). Fastmail's cheapest plan, Individual, is $5 a month, yearly.
Can I use my own domain with Fastmail or GMX?
Only Fastmail does (Yes). With GMX your address stays on its own domain.
Where is my email stored with Fastmail and GMX?
Fastmail keeps it in the EU (Amsterdam) for UK customers, with a US replica and US backups. GMX keeps it in Germany (European data centres).
Recent price changes
I haven't seen either change its price since I started checking on 22 October 2026.
The latest headlines: Fastmail news · GMX news.
Also worth a look
Fastmail vs mailbox.org · GMX vs mailbox.org · Fastmail vs Posteo · GMX vs Posteo · Fastmail vs Proton Mail · GMX vs Proton Mail
Switching between them
Moving to Fastmail · Moving from Fastmail. Or see all my switching guides.