if you want a mass emailer, make one, it's really not hard...especially in php....but if you wanna make it send thru a smtp server, you have to find an open server that allows anonymous/spoofed emails...i dont know what ones do, i'd suggest you google a bit on it....not many email systems have this function, as it's a nieussance to deal with the people sending thousands of emails per second thru your smtp server and makign your website load slowly as hell....i think i have gotten spoofed emails from teh hotmail and yahoo servers, meaning they are either open or the program being used actually logs into the services....