Hi, I am on Ubuntu 10.04 and experienced the same issue.
Setting mail.server.default.fetch_by_chunks to FALSE did not help immediately, had to restart Thunderbird also. Then repair the folder and then reopen the message. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/220991 Title: Thunderbird corrupts attachments from IMAP exchange server -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
