After I deleted the Unread search folder and created it again, it worked. It seems that the unread status is back up.
What changed was evolution-data-server to version 2.24.2-0ubuntu1. This is step in the right direction, although other criteria don't work. -- Unread search folder removes messages as soon as their unread flag is toggled https://bugs.launchpad.net/bugs/275952 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
