I have the same issue, beginning with 16.0, now with 16.0.2. Dovecot 1.2 is the remote server, I can provide access to it if that is helpful.
If it helps, here's my report: I'm configured for offline folders with a limit of 50 KB per message. It seems that since TB 16.x, messages from several folders are reloaded periodically, even if I hadn't opened them for weeks. Also, the status line is wrong, e.g. it shows "Loading message 1 of 1 from Folder XYZ", although in the folder there are e.g. 500 messages. Compacting messages and repairing folders didn't help at all. What is interesting, though, is that the problem seems to vanish for the current session only, when I sync all messages, even if new messages arrive after that. After a TB restart, the same problem occurs, until I sync again. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/1074260 Title: Thunderbird heavy IMAP traffic downloading messages Status in Mozilla Thunderbird Mail and News: In Progress Status in “thunderbird” package in Ubuntu: Confirmed Bug description: Thunderbird (as of version 16?) generates a lot of IMAP traffic, continually redownloading messages. One issue has been resolved (see https://bugzilla.mozilla.org/show_bug.cgi?id=803843 and https://launchpad.net/bugs/1068921 ) but this issue remains. It is open in bugzilla as https://bugzilla.mozilla.org/show_bug.cgi?id=806760 To manage notifications about this bug go to: https://bugs.launchpad.net/thunderbird/+bug/1074260/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
