mosa.cloud

mosa.cloud is a Dutch collaborative workspace whose mail module delivers team email with shared inboxes alongside docs, drive, video meetings, chat and spreadsheets. Named after the Mosa (Meuse) river in Maastricht, it positions itself as a sovereign alternative to Google Workspace and Microsoft 365 rather than a standalone inbox, so the email experience is tightly woven into the rest of the suite.

The stack is built on top of La Suite Numérique, the open-source workspace developed jointly by the French, German and Dutch governments and already used by over 200,000 French public servants. Mail ships with AI-assisted organisation, shared team inboxes, federated Matrix-based chat via Element, Collabora-powered document editing and kDrive-style file storage, all under one pay-per-usage billing model.

Key advantages:

• Shared team inboxes route support and sales mail to a group rather than a person
• AI-assisted triage summarises threads and surfaces the messages that actually need you
• Integrated Docs, Drive, Meet and Chat remove the need for parallel Google or Microsoft accounts
• Pay-per-usage pricing replaces per-seat licensing and scales with real storage and compute
• Open formats keep documents, spreadsheets and mail portable if you ever migrate away

mosa.cloud is operated from the Netherlands and runs entirely on EU-hosted infrastructure, meaning data never leaves European jurisdiction. Security controls are built to NIS2 expectations, and the underlying La Suite Numérique codebase is already trusted at national-government scale for sovereign communications.

For teams that want to replace the full Gmail-plus-Docs-plus-Meet bundle with something European, open-source and transparently priced, mosa.cloud is one of the most coherent options available.