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Mail.com vs GMX Mail: catalog facts
Mail.com	GMX Mail
Freemium Free accounts with ads; a premium tier is available.	Free Free, supported by advertising and sponsored content.
Web, Browser extension	Web
Choice of 100+ address domains Up to 10 addresses per account	Up to 10 addresses on one free account Mail collector for other email accounts
Free tier shows sponsored content Proprietary hosted service	Web portal shows sponsored news and ads Hosted service, so you rely on the provider for your mail
Hosted service, Browser extension	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 24, 2026

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