> Just wondering how to do this. I'd like to test to see if the sending > host at port 25 open. Would this be a good way to detect spammers? Would > a host sending email to my host not have port 25 open to receive email?
I think this would be a bad test also. Often people who use smart hosts or have outsourced spam/AV management tend to restrict access to their mail servers to only the relevant hosts (i.e. upstream relays etc) -- ## List details at http://www.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://www.exim.org/eximwiki/
