GMX
By United Internet, Germany
Ad-funded free webmail from Germany's United Internet group, which also runs mail.com.
At a glance
- Cheapest plan per year
- Free only
- No paid plan price stated
- Your own domain from
- Not offered
- Not stated for every plan
- Works in Apple Mail and Outlook
- Yes
- Who can read stored mail
- The provider can
- Provider-held keys
Good to know
- GMX holds the keys to your stored mail
- Its policy says mail content is used for ad profiles
- Same owner as mail.com
Where it stands among 24
Each fact with every provider's answer. GMX is outlined.
Who can read your stored mail
The provider can
Only you 3
Only you, if switched on 4
The provider can 16
Not stated 1
Ads on the free plan
Free, with ads
Your own domain
Not stated
On a personal plan 12
Only on a business plan 3
Not offered 2
Works in Apple Mail and Outlook
Yes, standard IMAP
Yes, standard IMAP 17
Through a bridge app 1
No, its own apps only 3
Where the company is based
Germany
European Union 7
Switzerland or Norway 5
Elsewhere 4
Plans and prices
In EUR, as listed by GMX on 2026-10-16.
Free
Free
Ads; inactive accounts can be deleted; IMAP/POP may be off by default
ProMail
Not stated
- People
- 1
- Storage
- 5 GB
- Own domains
- Not stated
- IMAP
- Yes
- Renews at
- Not stated
Gives '~€3.99/month after a free month', semi-annual or annual billing; exact price not established.
MailDomain
Not stated
- People
- 1
- Storage
- Not stated
- Own domains
- Not stated
- IMAP
- Yes
- Renews at
- Not stated
Cheapest plan with your own domain; sources gives 'starting around €0.97/month'.
Who can read your mail
- Provider can't read stored mail
- NoNo
- Subject lines encrypted
- NoNo
- Encrypted between its own users
- NoNo
- Encrypted mail to outsiders
- Not statedNot stated
- Built-in PGP
- Not statedNot stated
- Ads on the free plan
- YesYes
- Mail used for ads
- YesYes
- AI and your mail
- Not stated
Who you're trusting
- Owner
- United Internet
- Operating company
- 1&1 Mail & Media GmbH
- Based in
- Germany
- Mail stored in
- Germany
- Open-source apps
- NoNo
- Transparency report
- Not statedNot stated
- Latest audit
- None published
- Known incidents
- None found
Apps and features
- Web Yes
- iPhone Yes
- Android Yes
- Windows No
- macOS No
- Linux No
- Works in Apple Mail, Outlook, Thunderbird
- Yes, on every planYes, on every plan
- POP3
- YesYes
- Exchange ActiveSync
- Not statedNot stated
- Security key or passkey sign-in
- Not statedNot stated
- Authenticator-app 2FA
- Not statedNot stated
- Extra addresses
- Up to 10
- Hide-my-email aliases
- NoNo
- Catch-all for your domain
- NoNo
- Calendar
- YesYes
- Contacts
- YesYes
- File storage
- YesYes
- Sieve filters
- Not statedNot stated
- Scheduled send
- Not statedNot stated
- Undo send
- Not statedNot stated
- Import from Gmail or Outlook
- YesYes
- Export your whole mailbox
- Not statedNot stated
- Auto-forwarding
- Not statedNot stated
Compare GMX
Sources (8)
- GMX privacy policyVendor, checked 2026-10-16
- GMX data collectionVendor, checked 2026-10-16
- Research summary of the provider's pages (no single link)AI-assisted research, spot-checked, checked 2026-10-16
- GMX.net plan comparison (German)Vendor, checked 2026-10-16
- Research summary of the provider's pages (no single link)AI-assisted research, spot-checked, checked 2026-10-16
- Research summary of the provider's pages (no single link)AI-assisted research, spot-checked, checked 2026-10-16
- GMX MailVendor, checked 2026-10-16
- GMX SupportVendor, checked 2026-10-16