https://bugs.kde.org/show_bug.cgi?id=283682
--- Comment #157 from Dennis Andress <dandre...@gmail.com> --- I had this bug a couple of years ago. It is more like a feature that can be turned on and off. Tools>Configure KMail>Accounts>Select Account>Modify On the Advanced tab check Automatically compact folders (expunges deleted messages) -- You are receiving this mail because: You are watching all bug changes.