Can a server in a second Active Directory forest be monitored using InTrust?
Yes this is possible as InTrust doesn’t have any forest boundary.
If the auto-deployment from InTrust to the other forest is not possible, then manually install the InTrust Agent and register it to the InTrust server in question.
Please note that the Port 900 TCP is required inbound from the InTrust Agent to the InTrust server.
