Probably the problems come from my company's Exchange server. So I'll close the bug report.
Sorry for any inconvenience. ** Changed in: evolution-exchange (Ubuntu) Status: Unconfirmed => Rejected -- launching evolution +exchange backend takes long time https://launchpad.net/bugs/60407 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs