Hi Almassud,
Thanx for Ur reply, I tested Global Catalog server in child domain
as (nltest.exe /dsgetdc: /GC) at command prompt, and its able to contact
one of the Global catalog server in forest.
PDC and ADC these two are Global catalog servers in the forest and
I able to replicate to both GCs from child domain and from child domain to
GCs. And I can able to create users with exchange mailbox in other child
domains( except one child domain in which I am facing problem while
creating mailbox for a user) installed in the same forest.
What could be the causes for this error.
Once again thanx
robin