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.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
This release fixes a bug which caused a timeout while scanning Qmail servers and adds an option to display the full SMTP transaction in the resulting HTML files.