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.
Re: Why, why?
> Why did you produce this? Why are you
> giving yet more tools to spammers?
This tool was not produced to help spammers find even more open relays to exploit. It was pr...