SendEmail is a lightweight, completly command line based, SMTP email agent. If
you have the need to send email from a command prompt this tool is perfect. It
was designed to be used in bash scripts, Perl programs, and web sites, but it
is also quite useful in many other contexts. SendEmail is written in Perl and
is unique in that it requires no special modules. It has a straight forward
interface, making it very easy to use. It can send atttachements.

WWW: http://caspian.dotconf.net/menu/Software/SendEmail/