Proton Mail
Proton Mail is an end-to-end encrypted email service from Switzerland. Messages are encrypted so that not even Proton can read them, making it a strong alternative to Gmail and Outlook.
Open Source
All alternatives
European alternatives to Outlook
Outlook is Microsoft’s email service, bundled with Windows and Microsoft 365. Like Gmail, it is operated by a US company, and mailbox data falls under United States jurisdiction.
The services below are European alternatives to Outlook: each one is run by a company headquartered in the EU, the EEA or the EFTA, and we describe its hosting and open-source status honestly through tags.
Tuta Mail
Tuta (formerly Tutanota) is an encrypted email service from Germany. Mailboxes, calendars and contacts are end-to-end encrypted, and the apps are fully open source.
EuEu HostedOpen Source
Mailbox.org
Mailbox.org is a privacy-focused email and office provider from Berlin, Germany. It combines secure email with calendar, contacts, cloud storage and online office tools.
EuEu Hosted
StartMail
StartMail is a private email service from the Netherlands, created by the team behind the Startpage search engine. It offers unlimited disposable aliases and built-in PGP encryption.
Eu
Posteo
Berlin-based, ad-free email built on green energy and open standards, paid for by a flat monthly fee rather than your data.
EuEu HostedOpen Source
Mailfence
A Belgian secure email suite with browser-based OpenPGP encryption, digital signatures and an integrated calendar and document store.
EuEu Hosted
Mailo
A long-running French webmail service offering mail, calendar, contacts and file storage on servers located entirely in France.
EuEu Hosted
Runbox
A privacy-focused Norwegian email host that owns and runs its own servers in Oslo, powered by renewable hydroelectric energy.
EuEu Hosted
Infomaniak kMail
The free, privacy-respecting email service of Swiss cloud provider Infomaniak, part of its kSuite productivity platform.
EuEu Hosted
Soverin
A Dutch, privacy-first email provider offering ad-free mail with custom domains for individuals and hosting partners alike.
EuEu Hosted
eclipso
A German privacy-focused mail and cloud provider offering email, file storage, calendar and contacts from servers in Germany.
EuEu Hosted
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Browse the full Email services category for every European option we list.