European alternatives to Microsoft Outlook

Microsoft Outlook is an email client and personal information manager developed by Microsoft, used by individuals and organisations for email, calendar, and contacts. Some EU-based businesses and professionals explore alternatives due to concerns about data residency, dependency on US-based cloud infrastructure, and GDPR compliance. This page lists EU-based email providers that offer comparable personal and business email functionality.

Common options by use case

The following tools are commonly used software for the mentioned use cases. These groupings are intended to help navigation. They are not rankings or recommendations.

Proton mail

For privacy-focused use

Eclipso

For solopreneurs

Migadu

For technical users

All listed EU alternatives

All tools listed below are linked to Microsoft Outlook as an alternative. Tools are sorted alphabetically and are not ranked or scored.

  • eclipso

    EU-based

    eclipso.net

    Germany

    Eclipso is an email and cloud service developed by eclipso.net, a German owner-managed internet company. It is typically used for secure personal and business email with cloud storage and calendar included. It focuses on ad-free, GDPR-compliant communication hosted exclusively in German data centres.

    View profile

  • Hostpoint Email

    EU-based

    Hostpoint AG

    Switzerland

    Hostpoint Email is an email hosting service developed by Hostpoint AG, Switzerland’s largest web hosting provider. It is typically used for professional email with a custom domain, combined with calendar and cloud storage tools. The provider is based in Rapperswil-Jona, Switzerland, and focuses on data sovereignty with all infrastructure located exclusively in Switzerland.

    View profile

  • inbox.eu

    EU-based

    Inbokss Ltd (SIA Inbokss)

    Latvia

    inbox.eu is an email hosting service developed by Inbokss Ltd, a Latvian internet company operating since 1998. It is typically used for personal and business email with calendar and contacts. The provider is based in Riga, Latvia, and focuses on EU-hosted, GDPR-compliant email at an accessible price point.

    View profile

  • mail.de

    EU-based

    mail.de GmbH

    Germany

    mail.de is an email service developed by mail.de GmbH, a German owner-managed internet company founded in 2009. It is typically used for personal and professional email with calendar, contacts, and online storage. It focuses on GDPR-compliant, ad-free communication hosted exclusively on German servers.

    View profile

  • Mailo

    EU-based

    Mail Object

    France

    Mailo is a webmail and email hosting service developed by Mail Object, a French company. It is typically used for personal, family, and professional email with a custom domain. The provider is based in Saint-Maur-des-Fossés, France, and focuses on privacy-first communication with all data hosted exclusively in France.

    View profile

  • Migadu

    EU-based

    Migadu-Mail GmbH

    Switzerland

    Migadu is an email hosting service developed by Migadu-Mail GmbH, a Swiss company. It is typically used for custom domain email hosting across multiple domains. The provider is based in Schachen, Luzern, Switzerland, and focuses on standards-based email hosting with data stored in EU-certified data centres in France.

    View profile

  • Posteo

    EU-based

    Posteo e.K.

    Germany

    Posteo is a privacy-focused email service developed by Posteo e.K., an independent German sole proprietorship. It is typically used for secure, ad-free personal email with calendar and contacts. The provider is based in Berlin and focuses on maximum privacy, minimal data collection, and environmental sustainability. Posteo does not support custom email domains.

    View profile

  • Proton Mail

    EU-based

    Proton AG

    Switzerland

    Proton Mail is an end-to-end encrypted email service developed by Proton AG, a Swiss company. It is typically used for secure personal email and supports custom domains on paid plans. The provider is headquartered in Geneva, Switzerland, and focuses on privacy by default, with all data stored in European data centres.

    View profile

  • Runbox

    EU-based

    Runbox Solutions AS

    Norway

    Runbox is a private email hosting service developed by Runbox Solutions AS, a Norwegian employee-owned company. It is typically used for individual and small team email with custom domain support, accessed via standard email protocols. The provider is based in Oslo, Norway, and focuses on privacy, EEA-based data ownership, and environmental sustainability.

    View profile

  • Seeweb Mail

    EU-based

    Seeweb Srl

    Italy

    Seeweb Mail is a cloud email hosting service developed by Seeweb Srl, an Italian cloud computing company. It is typically used for business email with a custom domain, hosted on the provider’s own infrastructure in Italy. The provider is based in Milan and Frosinone and focuses on reliable, Italian-hosted email with business-grade infrastructure.

    View profile

  • Soverin

    EU-based

    Soverin B.V. (part of The Sharing Group)

    Netherlands

    Soverin is a privacy-focused email hosting service developed by Soverin B.V., a Dutch company. It is typically used for personal and professional email with a custom domain, with all data hosted in the Netherlands. The provider is based in Amsterdam and focuses on subscription-funded, ad-free email with no data tracking or profiling.

    View profile

  • Tuta

    EU-based

    Tutao GmbH

    Germany

    Tuta (formerly Tutanota) is an end-to-end encrypted email service developed by Tutao GmbH, a German company. It is typically used for secure personal and business email with calendar and contacts, with encryption applied automatically to all content. The provider is based in Hanover, Germany, and focuses on quantum-safe encryption with all data stored on the company’s own servers in Germany.

    View profile

Before choosing software

Software suitability depends on your organisation’s size, technical capacity, budget, existing systems, and compliance needs. Review the provider’s own documentation before making a decision. Information on this page is provided for orientation and may not reflect the most recent changes to a product or vendor.

Frequently asked questions

Most EU-based email providers support standard protocols for calendar and contacts synchronisation. This means calendar and contacts data can generally be synchronised with a range of applications, though the specific experience depends on the provider and the client software you use. Check the provider’s documentation for compatibility details.

In most cases, yes. The Outlook application supports standard email protocols, which means it can be configured to work with many third-party email providers. Some EU-based providers with end-to-end encryption use their own applications instead of supporting standard protocols, as standard access would undermine encryption. Check the provider’s documentation before assuming compatibility.

Practical considerations include whether your team uses other parts of the Microsoft ecosystem such as shared calendars, how your email domain is currently configured, what the process is for migrating existing emails, and whether the new provider offers a data processing agreement suitable for your compliance needs. Review the provider’s own documentation and, where relevant, consult your IT or legal contact before making changes.

Browse the EU Directory

Tools listed on this platform are selected based on defined criteria: European headquarters, majority EU ownership, and European data residency as a standard option. Some pages may also include tools from non-EU vendors that offer European data hosting, these are clearly labelled. Listings do not constitute recommendations.