Well, you never use the contents of
$address, so rmail doesn't know who you're trying to send to. Unless '55379' is supposed to be a valid user on your system, which you didn't indicate either way.
Personally, I'd use
Net::SMTP, or
MIME::Lite, or one of the other Perl mail tools. rmail doesn't *seem* to be the correct tool for the job, although I can safely say I know nothing about rmail, other than reading the rather limited man page text.
--Chris
e-mail jcwren