SmtpRC is a fully configurable, multithreaded open mail relay scanner.
It supports scanning of IP blocks, and can print the results to a Web 
page. It is intended for Systems Administrators to check IP blocks 
under their control

WWW:		http://smtprc.sourceforge.net
AUTHOR:		Spencer Hardy <diceman@dircon.co.uk>

       - Michael L. Hostbaek
       mich@FreeBSD.org
