Your error is most likely a different bug (with similar symptoms) than was posted here. (This one was fixed years ago, and this was kept open in case somebody wanted to do an SRU of the fix to Kubuntu Dapper. Kubuntu Dapper has reached the end of its supported life, though, and SRUs too it will not be happening anymore.
** Changed in: kdepim (Ubuntu) Status: Confirmed => Fix Released -- [Data Loss] KMail mysteriously changes messages to "No Subject", "Unknown" sender https://bugs.launchpad.net/bugs/50039 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs