You have all your mail twice in your inbox? Which KDE version are you using?
I've experienced also "endless duplication" for some mails with (large) attachments. ** Bug watch added: KDE Bug Tracking System #125084 http://bugs.kde.org/show_bug.cgi?id=125084 ** Also affects: kdepim (upstream) via http://bugs.kde.org/show_bug.cgi?id=125084 Importance: Unknown Status: Unknown -- Kmail + IMAP: Duplicates mails with attachment https://launchpad.net/bugs/93051 -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
