how to test on open relay?

foreverbigface · 08-16-2003, 02:16 AM

hey guys, i wanna know if there is some online stuffs for testing open relay of my rh9. i have enable sendmail but don't know how to test for open relay on it.
thanks.

kev82 · 08-16-2003, 04:06 AM

no software neccessary, just try to send an email from outside the relay, to someone else outside the relay eg: if your relay is mydomain.com, telnet to your mailserver(from an outside connection) and attempt to send a message to youraddress@another.domain.com, if it gets through then you have an open relay.

mule · 08-16-2003, 05:17 AM

or check those links:

http://www.relaycheck.com/test.asp -> tests for open relay
http://www.antispam-ufrj.pads.ufrj.br/ -> tests for open relay
http://hatcheck.org/proxy/ -> tests for open proxy relaying

cheers, mule