Paul, the closing output is normal from a debug build (it's turned off in final builds). I suspect you're now hitting another open issue - can you check the following bugs and see if you fit any of them?
Bug 891334, Bug 795590, bug 796989, bug 793792 If so, get in touch with me or comment on the bug, and it would be great if you could try a run with the Thunderbird profiler to help us isolate the problem. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1074260 Title: Thunderbird heavy IMAP traffic downloading messages To manage notifications about this bug go to: https://bugs.launchpad.net/thunderbird/+bug/1074260/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs