I don't have the time to figure out how to set up a mail gateway. Call 539-0852, ext. 105 for current pricing and details. This varies, depending upon your software. Often, just the presence of a file called .signature will append a signature to your news postings.
Mail can be a bit trickier.
When you first run elm , it creates a directory called .elm with a file inside called elmrc . Also, a line in elmrc controls signature options. Will turn this feature on. This is the recommended length for good netiquette. The news posters on XMission enforce this length.