Thanks for the quick response Karl!
No antivirus config files in /etc and no service clamav running. At this point I am pretty confident in that there is no antivirus/spam software running on the server.
Currently all DNS is going through our ISP. What advantages does OpenDNS have? If DNS is getting blocked by our firewall (external hardware not on the Scalix Server) could that cause sendmail to crash? I am not sure if that is the case, but I will definately look into that.
Again, I really appreciate all the help.
Regards,
Mitchell