How to check what is clogging up mail services - CentOS 5
I am having some mail failures, and can't pin point what to look for. Should I be using netstat -an, and seeing what is open, and closed?
Also I am using Qmail as the Primary MTA.
Since I am using Qmail, I was going to implement SPAMDyke. Any one have any problems with SPAMDyke, and is it a good Open Source solution?