https://bugs.kde.org/show_bug.cgi?id=419751
--- Comment #7 from w...@mymail.cat --- oddly enough when I compose the email while browsing on any subfolder other than the main Inbox the email is successfully sent, which suggests this bug is related to https://bugs.kde.org/show_bug.cgi?id=419752 as they both appeared at the same time -- You are receiving this mail because: You are watching all bug changes.