Spam, PostFix, OPen Relay question
I am running a postfix server. When I test open relay through some of the open relay web pages on the internet it reports "No open relay". But, I can telnet into the box and send mail to and from anywhere that I please.
There is no security in place, like POP-BEFORE-SEND or anything like that. So how can I tell if this thing is open relay or not?
Also, I have people with mail clients like outlook or are able to connect to postfix and send mail to anyone....
I don't get it. It seems like open relay (which I do not want), but, open relay web programs are saying no.... What gives.