Kmail problems

Hello I have a problem with Kmail when I'm trying to setup my outgoing server. The server I'm using needs authentification, and despite I fiil up everything concerning with this, and the mail is "sent", I'm sure the mail is not getting anywhere, because if I try to send it to my self I don't receive anything. I also did the same from evolution and it works fine, but evolution have a trouble with the size of the font that despite many tries with gnomecc, gnome-control-center and other things is not permanently fixed. So, somebody knows what's happening here?? Thanks in advance Juan C. Gallardo