DavMail 6.8 has been released as the latest version of the open-source Exchange and Microsoft 365 gateway, bringing active Microsoft Graph support directly into the application’s graphical interface.
For those unfamiliar, DavMail operates as a bridge between Microsoft Exchange or Microsoft 365 and standard mail and calendar clients. It exposes Exchange services through protocols like IMAP, POP, SMTP, CalDAV, CardDAV, and LDAP, enabling access to mail, calendars, contacts, and address books from clients such as Thunderbird rather than Outlook.
The primary update in the new version is the addition of active Graph support in the GUI. Moreover, the configuration model has been redesigned. DavMail now separates connection modes, such as Graph or EWS, from authentication methods, giving users and administrators more transparent configuration options for connecting to Microsoft services and managing authentication.
DavMail 6.8 also introduces automatic Teams meeting creation via the davmail.caldav.enableOnlineMeeting setting. Additional Graph-related updates include improved handling of invalid_grant errors on live.com accounts, default OIDC enablement when using Graph for token retrieval, and fixes for folder handling, expired sessions, attendee status, and mailbox behavior.
Beyond the Graph backend, EWS mode now supports additional recurrence patterns and improved recurrence rule handling. CalDAV support includes several timezone fixes, new mappings for Central Standard Time and Asia/Singapore, and enhanced handling of mixed-timezone calendar events.
The GUI update includes small fixes such as disabling the URL field in O365 mode, improving paste support in O365 Interactive and Manual authentication modes, switching to 128×128 icons, and enabling tray icon auto-sizing.
This release provides two packaging-related fixes for Linux users: resolving missing libswt-webkit-4-jni dependencies and correcting a regression affecting SUSE builds. SWT changes also include a Wayland fix that sets the application name to prevent a default icon when using the embedded browser window.
Finally, the release improves macOS Tahoe support, resolves regressions with the tray icon and dock hiding, and updates documentation to represent the new configuration model, including revised settings and a modern architecture diagram.
For more details, see the announcement.
