>Many mail programs identify themselves in the header with an X-Mailer line. > Here is a sample from four messages in my current IN box: > >X-Mailer: Mozilla 3.01 (Macintosh; I; PPC) >X-Mailer: Eudora 4.0 for Cray T3E-1200 >X-Mailer: QUALCOMM Windows Eudora Pro Version 4.0 >X-Mailer: Novell GroupWise 4.1 > >Mozilla is really Netscape. I can tell that the sender of the first >message was using Netscape 3.01 on a Mac. > > Peace, Dan Of course, there are many mail programs which do not seem to identify anything at all about themselves. For example, I have yet to see any sort of mailer identification from any person sending me e-mail from any of the various supported mailer programs on our OpenVMS computer at Drew except for Pine. Neither All-In-1 nor VMSmail nor PMDF Mail seem to leave any sort of tag as to the mailer which is being used. Glenn