If the computer you are running CA Gateway Security on is also running Microsoft Small Business Server 2003 or Microsoft Exchange, you may encounter a conflict with port numbers:
If one or both of these products is installed on the same machine as CA Gateway Security and you do not modify the ports during the installation of CA Gateway Security, port conflicts will occur and CA Gateway Security will not install or work properly.
Recommendation: If you need to modify the ports, we recommend changing the ports as follows:
Refer to your Windows documentation to change the port for MS Exchange.