Alternativas a Microsoft 365

Cloud Mail

Italy

Seeweb’s managed professional domain email: Plesk admin, Roundcube webmail, CalDAV/CardDAV, pre-delivery antispam, and daily off-site backups on Italian/EU infrastructure.

Combell E-mail

Belgium

Belgian professional email hosting from Combell (team.blue): domain Basic IMAP mailboxes, Hosted Exchange, Microsoft 365 reseller options, spam protection, backups, SMTP relay, and 24/7 Benelux support.

eclipso Mail Europe

Germany

Owner-operated German email and cloud suite with IMAP, optional OpenPGP/S/MIME, prepaid freemium, Drive/organizer, and hybrid SMS/fax/post—hosted in Germany.

Hostpoint E-Mail & Cloud Office

Switzerland

Swiss custom-domain email and Open-Xchange Cloud Office (calendar, Drive, docs) from Hostpoint AG, with mailboxes and data hosted in Switzerland.

Inbox.eu

Latvia

Latvia-based hosted email from SIA INBOKSS with ad-free personal and business mailboxes, custom domains, large integrated file storage, calendar/contacts, and mobile apps.

Kolab Now

Switzerland

Swiss-hosted FOSS Kolab groupware from Apheleia IT AG: email, calendars, contacts, files and optional Collabora collab on operator infrastructure in Bern.

LibreOffice

Germany

Free open-source desktop office suite from The Document Foundation (Berlin): Writer, Calc, Impress, Draw, Base, and Math, with native ODF and strong OOXML interoperability.

mailbox (formerly mailbox.org)

Germany

German paid digital workplace from Heinlein Hosting GmbH: secure email with PGP/S/MIME, Drive, browser Office, Meet, and business Admin on dual Berlin data centres.

Mailfence

Belgium

Belgian secure email suite with browser-side OpenPGP encryption, digital signatures, calendar, documents, and optional custom domains under ContactOffice Group SA.

Mailo

France

French freemium webmail and Mail&Cloud suite (MAILO SAS): email, calendar, cloud disk, Mailo Junior for children, and Pro custom domains—hosted in France, proprietary SaaS.

Migadu

Switzerland

Swiss-operated, standards-based email hosting for custom domains: unlimited addresses and multi-domain accounts priced by usage quotas, not per mailbox.

Nextcloud

Germany

Open-source, self-hosted content collaboration Hub from Nextcloud GmbH (Germany): Files, Talk, Groupware, Office, local AI Assistant, and Flow—an on-prem alternative to Microsoft 365-style suites.

Proton Mail

Switzerland

Swiss end-to-end encrypted email from Proton AG: zero-access inbox storage, open-source clients, custom domains, and Bridge for desktop IMAP clients.

RAIDBOXES Emails

Germany

German domain email hosting from Raidboxes GmbH (Münster): Mail Hosting 2.0 with IMAP/SMTP, multi-mailbox plans, optional PGP, and dashboard fit for WordPress agencies—domain must be hosted at RAIDBOXES.

Soverin

Netherlands

Dutch privacy-first email hosting: custom domains, open IMAP/SMTP/CalDAV, 25 GB mailboxes, no ads or content scanning, servers operated in the Netherlands.

Swissnode

Switzerland

European cPanel email, shared web hosting, and KVM VPS under the Swissnode brand—vendor-stated Spain data center after Swiss DC closure, with optional Cloudflare CDN on web plans.

Tuta

Germany

German end-to-end encrypted email, calendar, and contacts from Tutao GmbH in Hanover—with post-quantum TutaCrypt, open-source clients, and freemium personal plus business plans.