mail.de

mail.de is a German email specialist focused on strong cryptography and serious anti-spam, running everything from a free mailbox up to a power-user plan with effectively unlimited storage. Founded in 2011 and operated entirely from Germany, it targets users who want a proper security posture rather than a lightly branded reskin of a US mailbox.

The technical sheet is unusually thorough for a consumer provider: OpenPGP and S/MIME end-to-end encryption, TLS/SSL everywhere, DKIM signatures, DANE/TLSA for authenticated transport, Perfect Forward Secrecy, and two-factor authentication with U2F hardware keys or TOTP apps. Webmail, iOS and Android apps, CalDAV/CardDAV sync and optional SMS and fax round out the day-to-day toolkit.

Key benefits:

• End-to-end encryption via both OpenPGP and S/MIME straight from the webmail UI
• U2F hardware key support for phishing-resistant two-factor login
• Up to 30 aliases on premium tiers segment identity across work, signups and personal use
• Scaling storage from 500 MB on the free tier to unlimited on PowerMail
• Professional anti-spam and virus scanning tuned for German inbox norms

mail.de is run from Germany, with servers hosted in high-security German data centres and operations aligned with the GDPR and the country's strict telemedia and data-protection regimes. The service carries the BSI IT-Sicherheitskennzeichen (recently upgraded to Gold status in 2025) and a DATATREE AG privacy certification.

For users who want the rigour of a security-focused mailbox without leaving the open standards of IMAP, SMTP and PGP, mail.de is a quietly capable German choice.