Created attachment 106153 [details] HTML or Plaintext+HTML emails look like this After upgrading to qt5-webkit-5.212.0alpha2 (from archlinux packages), some (but not every) emails have a broken layout in the viewer widget. See attached screenshots.
Created attachment 106154 [details] Plaintext only emails look like this
This looks like a duplicate of bug #378684. There's also an upstream bugreport at https://github.com/annulen/webkit/issues/511 . *** This bug has been marked as a duplicate of bug 378684 ***