European & open-source alternatives to Gmail
16 European and open-source alternatives to Gmail — privacy-friendly tools built and hosted in Europe.
Updated 14 Sep 2026 · refreshed weekly
eM Client
A full-featured email client for Windows and Mac that synchronizes with various email services, offering email, calendar…
Kolab Now
A web-based email and groupware service that provides secure and private email accounts, calendars, address books, video…
KDE Kontact
A personal information management suite that unifies applications for email, address books, calendars, and tasks into a single…
Mailbox.org
This service provides a secure and GDPR-compliant digital workspace, offering email, cloud storage, office applications, and…
Mailfence
A secure and private email service offering encrypted email, calendars, documents, and collaboration tools, emphasizing user…
MailProfessionale
This service provides professional email hosting, allowing businesses to use their own domain for email communications, and…
Migadu
Independent Swiss email host with flat-rate, standards-based mailboxes on open-source infrastructure.
Open-Xchange
This platform provides email, calendar, and collaboration tools, offering a familiar experience for daily work across various…
Posteo
A paid email service provider that offers secure, ad-free email accounts, calendars, and other features, emphasizing…
Proton Mail
It provides a secure and encrypted email service, offering privacy by default and protecting user data under strong Swiss privacy…
ProtonMail
Proton Mail is an email service that offers privacy and encryption, providing a secure alternative to traditional email providers…
Runbox
Privacy-focused Norwegian email and webmail provider, employee-owned, with servers in Oslo.
Soverin
Soverin provides private email services with a focus on security, privacy, and custom domains, offering ample storage and…
StartMail
A secure and encrypted email service that allows users to create disposable email addresses to protect their inboxes from spam…
Tuta
An end-to-end encrypted email, calendar, and contacts service that stores all user data encrypted on its own servers.
Tutanota
An end-to-end encrypted email and calendar app that automatically encrypts all user data with post-quantum cryptography, making…