SUMMARY Context: I'm using kmail as a standalone MUA. I don't use nor want/need to use kontact. When I use the dolphin context menu "Send file as attachment", a new mail window opens with the file as attachment but it ALSO moves (if kmail is already opened) or opens the kmail main window on the current desktop. STEPS TO REPRODUCE 1. With dolphin, click on a file to open the context menu 2. Select "Action -> Send file as attachment" OBSERVED RESULT Both the mail composer window AND the main window open on the current desktop (if the main window was already opened on another desktop, it is moved to the current desktop). EXPECTED RESULT Only the composer window should open. SOFTWARE/OS VERSIONS Windows: N/A macOS: N/A Linux/KDE Plasma: Linux 4.15 / Kubuntu 18.04 (available in About System) KDE Plasma Version: 5.12.8 KDE Frameworks Version: 5.47 Qt Version: 5.9.5