It appears that evolution spam filter was incorrectly classifing all new mail as spam. I've disabled it and all problems disappeared.
-- Evolution fails to download some gmail emails https://bugs.launchpad.net/bugs/121090 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