Mark as single-instance using X-GNOME-SingleWindow key

8d910bec · Laurent Montel · cc010b34 · 8d910bec
Commit 8d910bec authored Dec 26, 2021 by Laurent Montel 😁
--- a/src/data/org.kde.kmail2.desktop
+++ b/src/data/org.kde.kmail2.desktop
@@ -200,6 +200,7 @@ Categories=Qt;KDE;Office;Network;Email;
 MimeType=x-scheme-handler/mailto;
 InitialPreference=10
 Actions=Composer;CheckMail;
+X-GNOME-SingleWindow=true

 [Desktop Action Composer]
 Name=New Message...