https://bugs.winehq.org/show_bug.cgi?id=52629
--- Comment #4 from Jonas winehq@jonass.user.lysator.liu.se --- I wrote this report after testing Pegasus Mail 4.8. (But the same or similar issues have been reported by many Pegasus users for a long time with several versions).
Your result with Wine 7.4 is good. I will comment again when I have had the opportunity to test that.