Relay or zombie, spam problem
Posted on 2007-10-08
I have an exchange 2007 server with 2 autorithative domains accepted. I have forefront for exchange servers installed on this computer and deactived IMF because people didn't receive emails from outside.
Today i saw in the mail spooler many mails with blank sender to externals domain. I realize a abuse.net open relay test and no error received. My exchange isn't relaying.
Next day i'm planning to scan all possible computers to find a zombie, but could be a configuration error of my exchange? what could i reconfigure to repair this mistake?
Thanks in advance.