Created attachment 142990 [details] Message "please wait" SUMMARY When I delete emails too fast in a row, a message "please wait ... Please wait for the message to be transmitted" come up. As more emails I delete as more messages come up. None of this messages will disappear until I click on "cancel". I use POP3. STEPS TO REPRODUCE 1. Launch KMail 2. Retrieve emails 3. Delete new emails fast in a row (use the trash icon for "Shift+Del") SOFTWARE/OS VERSIONS Linux/KDE Plasma: Operating System: Fedora 34 KDE Plasma Version: 5.22.5 KDE Frameworks Version: 5.85.0 Qt Version: 5.15.2 Kernel Version: 5.14.13-200.fc34.x86_64 (64-bit) Graphics Platform: X11 Processors: 8 × Intel® Core™ i7-4770T CPU @ 2.50GHz Memory: 7.2 GiB of RAM Graphics Processor: Mesa DRI Intel® HD Graphics 4600