If you want to use say, xyz@domain.com to process emails for crm@domain.com in router, you also need to grant Impersonation permissions to xyz over crm.
Details for impersonation permissions can be found here :
If you want to use say, xyz@domain.com to process emails for crm@domain.com in router, you also need to grant Impersonation permissions to xyz over crm.
Details for impersonation permissions can be found here :