It works in thunderbird, or whatever default client you set. I expect that the other option is to set up a MTA - and that's likely to be even more painful, as not that many people know how to do it.
** Changed in: meta-kde (Ubuntu) Importance: Untriaged => Wishlist -- KDE bug reporter requires working Kmail config https://launchpad.net/bugs/50263 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs