SUMMARY Mails with an attachment are not stored & lost after sending. Sent mail without attachments are stored for later review. STEPS TO REPRODUCE 1. Send a mail with an attachment; the mail is not stored after sending 2. Send a mail without an attachment; the mail is stored after sending OBSERVED RESULT Lost mail copy after sending EXPECTED RESULT Stored a copy of mail for later review SOFTWARE/OS VERSIONS kmail2 5.17.3 (21.04.3) Operating System: Arch Linux KDE Plasma Version: 5.22.3 KDE Frameworks Version: 5.83.0 Qt Version: 5.15.2 Kernel Version: 5.12.15-arch1-1 (64-bit)
Reason was a malformed filter that moved some of the sent mails to a special folder. After correction of the filter criteria sent mails are stored now as expected. Sorry for the noise.