Sovereign by design

VNCmail+ is built so your mail never has to leave your perimeter. That is a design choice, not a deployment option bolted on later.

Your data stays yours

• Mail and calendar are served from your own infrastructure; the client talks to your mail server, not to a third-party cloud.
• The web client and the desktop shell run the same server artifact, so what you see in the browser and on the desktop behaves identically.
• The assistant you may use inside mail is grounded in your content and runs on the suite’s own AI stack — see AI options and data sovereignty.

One account, three jobs

Because the calendar and contacts share the same account as your mail, meetings, people and messages stay in step without a separate sync service.

What this means for you

• Nothing to migrate to a foreign service to use the calendar.
• The same data is reachable from the desktop and the browser.
• Administrators can run the suite on-premises or air-gapped unchanged.

See also

• Folders, tags and the calendar
• VNCmail+ overview