Because you have migrated the domain to Linux, the source MTA, Internet Agent, and WebAccess Agent no longer have an active domain to service and other agents in the GroupWise system can no longer communicate with them. Therefore, the source domain agents are no longer a necessary part of your GroupWise system.
Go to the source NetWare or Windows server where the original MTA and other domain agents are still running.
Display the MTA server console.
Stop the original MTA on the source server.
If applicable, stop the original Internet Agent on the source server.
If applicable, stop the original WebAccess Agent on the source server.
Continue with Migrating the Domain Data.