I set a breakpoint in nsMsgDBFolder::EndNewOfflineMessage() to trigger when this condition occurs, and I made a note of various local variables when it happens (hopefully it will be useful):
Main thread: tellPos = 4450254 messageOffset = 4271281 curStorePos = 178973 m_offlineHeader->GetMessageSize() returns 1778 m_bytesAddedToLocalMsg = 83 m_numOfflineMsgLines = 2447 On the IMAP thread (in nsImapProtocol::NormalMessageEndDownload()): m_bytesToChannel = 178890 m_parser.fSizeOfMostRecentMessage = 178890 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1068921 Title: Mailbox grows endlessly, heavy traffic To manage notifications about this bug go to: https://bugs.launchpad.net/thunderbird/+bug/1068921/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs