European alternatives to Outlook

Germany · Email

Ad-free, green-powered email from Berlin for just €1/month. Independently run, no logs, regularly audited.

Germany · Calendar & contacts

German end-to-end encrypted calendar by Tutao GmbH, tightly integrated with Tuta Mail. All calendar data is encrypted on German servers using post-quantum TutaCrypt encryption. Standalone calendar app launched in 2024. Open source, no ads, no tracking.

Belgium · Email

Belgian encrypted email suite with calendars, contacts, and documents. No ads, no tracking, protected by Belgian privacy law.

Netherlands · Email

Dutch email service providing personal domain email hosting. Simple, privacy-respecting, and hosted entirely in the Netherlands. No ads, no data mining, straightforward annual pricing. Founded in Amsterdam in 2015.

Germany · Email

A privacy-first email and groupware service from Berlin, run by long-time Linux specialists Heinlein Support. Encrypted mailboxes, calendars, contacts, and an online office - all hosted in certified German data centres and powered by green electricity, with no ads and no tracking.

Switzerland · Email

A fully open-source email and collaboration suite hosted in Switzerland. Email, calendars, contacts, tasks, file storage, and collaborative editing - all built on free software and operated under strict Swiss privacy law, with no ads and no tracking.

Norway · Email

Norwegian email provider focused on privacy and sustainability. Powered by renewable energy with no third-party tracking.

Switzerland · Calendar & contacts

Swiss end-to-end encrypted calendar by Proton AG. All event details (titles, descriptions, locations, attendees) are encrypted so even Proton cannot read them. ISO 27001 certified, independently audited annually by Securitum, own infrastructure in Switzerland and Germany.

Switzerland · Email

Swiss professional email service from Infomaniak, Europe's leading independent hosting provider. Powered by 100% renewable energy, owned and operated infrastructure in Switzerland, strict Swiss privacy laws, and a no data exploitation policy.

Switzerland · Email

French open-source email alias service acquired by Proton AG in 2022. Create unlimited aliases to protect your real email address from spam, tracking, and data breaches. Now integrated with Proton ecosystem. Free tier available.

Netherlands · Email

Private email from the team behind Startpage, operated in the Netherlands under EU privacy law. Unlimited disposable aliases, built-in PGP encryption, and no ads or tracking - though the parent company is US-owned.