Just to be clear, I am using MySQL (mariadb) backend. KMail2 works just fine with that. I am on the arch linux though. Ianseeks pisze: > On Monday, 12 October 2020 06:51:26 BST Martin van Es wrote: > > The same here, but ONLY on a postgres storage backend. > > MySQL and sqlite should be deprecated and postgres should be the default, > > that's all. > > +1