Same problem here, using disconnected imap. the cached files are truncated and even worse, synched to the imap store!
--- a "unknown" mail file ---- X-UID: 5179 Status: RO X-Status: ORT X-KMail-EncryptionState: N X-KMail-SignatureState: N X-KMail-MDN-Sent: ---- end of file ---- see also http://bugs.kde.org/buglist.cgi?short_desc_type=allwordssubstr&short_desc=&long_desc_type=allwordssubstr&long_desc=%22No+Subject%22&product=kmail&bug_status=UNCONFIRMED&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&bugidtype=include&bug_id=&votes=&emailassigned_to1=1&emailtype1=substring&email1=&emailassigned_to2=1&emailreporter2=1&emailcc2=1&emailtype2=substring&email2=&changedin=&chfieldfrom=&chfieldto=Now&chfieldvalue=&order=Bug+Number&cmdtype=doit -- [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 Kubuntu Team, which is a bug assignee. -- kubuntu-bugs mailing list [EMAIL PROTECTED] https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs