I have an active directory named ctrl1 in head office & an additional domain named ctrlpfg in factory. Head office mail server name mail-ho & factory mail server name mailpfg. Both locations connected with a radio link device. All servers installed in windows server 2003. Problem: when link down mail not connected from factory. Global settings of mail server not resolve ctrlpfg. Automatically find ctrl1 as a domain. Please help me.