Legacy Default
Microsoft 365 Mail
Ubiquitous but not built for organizations that prioritize local European hosting and stronger legal distance from US cloud norms.
Comparison
Mailfence vs Microsoft 365 Mail
Belgian-hosted email and collaboration service with business and private-label deployment models. — a detailed comparison to help European teams evaluate the switch.
European Alternative
Mailfence
Belgian secure email and collaboration service with Belgium-hosted infrastructure and a private-label server option for organizations.
Brussels, Belgium EU Self-Hostable
Feature Comparison
Side-by-side comparison
How Mailfence compares to Microsoft 365 Mail on key dimensions.
| Dimension | Microsoft 365 Mail | Mailfence |
|---|---|---|
| Headquarters | US-based | Brussels, Belgium |
| Jurisdiction | US law | Belgium |
| Hosting Region | Global / US default | Belgium |
| Hosting | Global enterprise cloud | Hosted in Belgium |
| Deployment model | Mostly managed suite | Managed service or licensed server deployment |
| Product scope | Broad office platform | Secure communication and collaboration suite |
| Privacy story | Enterprise operations first | Belgium and privacy-led service positioning |
Key capabilities of Mailfence
- Secure email plus calendar, documents, and groups
- Belgium-hosted infrastructure for business customers
- Private-label business option hosted by Mailfence or licensed on your servers
- OpenPGP interoperability and digital signatures
- Strong Belgian legal positioning in product messaging
Compliance Note
Mailfence's terms identify ContactOffice Group SA in Brussels, and its business offering states that the service is hosted on professional infrastructure in Belgium with an option to license the application on your own servers.
Frequently asked questions
Is Mailfence a good replacement for Microsoft 365 Mail?
Belgian-hosted email and collaboration service with business and private-label deployment models. Mailfence is headquartered in Brussels, Belgium with data hosted in Belgium, providing clearer GDPR compliance for European teams.
Where is Mailfence hosted?
Mailfence operates from Belgium under Belgium jurisdiction, keeping data within European legal frameworks.
Is Mailfence open source?
Mailfence is a managed service. However, it does support self-hosting for teams that need full infrastructure control.
Pairings
Tools that work well with Mailfence
Complement your European stack with these pairings.
Collaboration
CryptPad
Encrypted documents, polls, whiteboards, kanbans, and shared workspaces for teams that want privacy-first collaboration.
Collaboration
Nextcloud
File sync, document collaboration, chat, and calendar capabilities with strong deployment control.
Hosting & Cloud
Scaleway
Public cloud and infrastructure platform for teams that want an explicitly European cloud provider with a modern product surface.