Version: (using KDE 4.2.4) Installed from: Fedora RPMs I came into the office this morning to see that my hard disk was filled by ~/.xsession-errors. That one file was 132GB. It was filled by this one line repeated over and over: kio_imap4(15095)/kio (kioslave) KIO::SlaveBase::waitForAnswer: Got cmd 50 while waiting for an answer! I had had some trouble with kmail the day before caused by some big attachments. It would just hang for longer than it should have taken to download the whole file.
kio_imap4 doesn't exist anymore.