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GMX Mail vs Mailfence: catalog facts
GMX Mail	Mailfence
Free Free, supported by advertising and sponsored content.	Freemium A free account is available, with paid plans for more features.
Web	Android, iOS, Web
Up to 10 addresses on one free account Mail collector for other email accounts	OpenPGP encryption and signing in the browser Standard IMAP, POP and SMTP access
Web portal shows sponsored news and ads Hosted service, so you rely on the provider for your mail	Hosted service only Advanced features sit on paid plans
Web application, Hosted service	Downloadable app, Web application, Hosted service
Closed source	Closed source
License not stated	License not stated
Account needed	Account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.