https://bugzilla.gnome.org/show_bug.cgi?id=795997 is fixed in evolution-data-server 3.28.3. If your distribution does not ship 3.28.3 or higher you need to ask your distribution for backporting the fix.
** Bug watch added: GNOME Bug Tracker #795997 https://bugzilla.gnome.org/show_bug.cgi?id=795997 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to evolution in Ubuntu. https://bugs.launchpad.net/bugs/1788651 Title: Evolution Calendar constantly asks for password from TFA Google Account To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/evolution/+bug/1788651/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs