Spamers are using me as a realy how do I prevent this????Locked
I have recently installed Exchange 2007 and I have noticed that in my message queue there is tons of messages that are trying to be sent through my server that are apparently SPAM. I have been searching and searching to find out how to fix this and I cannot quite understand. One article conflicts with another article and I cannot seem to find the appropriate solution and the microsoft documentation is less then understandable! ugh!
Can someone please help me fix this. We did block port 25 in the firewall thinking that would resolve it but that didn’t fix it. They are still getting through and we don’t know how to plug the hole at this point.