Since I thought of the BetterConversation plugin as the culprit for the mismatch bewteen headers and message bodies I deactivated it. I decided to use on-board functions from Thunderbird 5 to have a similar functionality: I enabled grouping by topic and copied all my sent messages to the respective folders with received mails to get complete conversations/threads of a certain topic.
The reorganization culminated in the fusion of two "archive folders", one for received, the other for sent mails. Combined, there are now some 11000 messages worth of 900 MB in one folder. After the join I compacted the parent folder and subsequently realized many messages with wrong headers. "Repair folders" fixed it. Might the folder compaction algorithm be involved in 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/491170 Title: Wrong E-Mail displayed in message pane To manage notifications about this bug go to: https://bugs.launchpad.net/thunderbird/+bug/491170/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs