caused by problems that I have described in bug #Bug 294027 I cannot use kmail anymore. I've opted for clawsmail that have a feature that is very useful: I have some cyrus-imap shared folder and in these folder my colleague can delete mails so from time to time I don't see mails if I don't read before him. Clawsmail periodically get via IMAP new mails and if some mail is deleted by my colleague, it shows mail greyed out telling that it had deleted but I can always see that mail for a while. After a period (I don't know if it is customizable) deleted mails disappears. I think this feature is very useful.