Required Ports for BizTalk Server
For complete information about securing your BizTalk Server deployment, see Sample BizTalk Server Architectures.
This section provides information about the ports you need to open on the firewalls so that the BizTalk Server components can communicate with each other.
If you have other servers in your production environment in addition to the ones BizTalk Server uses, you may need to open additional ports. For more information about the port requirements for the Windows Server System™, see http://go.microsoft.com/fwlink/?LinkId=25713.