Hi all, In exchange 2003, we can use the external assoicated account to allow cross forest to access. as http://www.msexchange.org/tutorials/Understanding-External-Associated-Account-Windows-Server-2003-Exchange-2003.html Now, I need to do this in Exchange 2007 but I can not find it. Can anyone help as I need to create 600 external associated accounts due to two company merger? If you have a script, I will greatly appreciate it. thank you.

you can use linked mailboxes in exchange 2007 http://technet.microsoft.com/en-us/library/bb123524(EXCHG.80).aspx and http://www.msexchange.org/articles_tutorials/exchange-server-2007/planning-architecture/deploying-exchange-resource-forest-part1.html read the part 2 as well Dhruv

Some more information about how to convert to Linked Mailboxes http://telnetport25.wordpress.com/2008/06/10/linked-mailbox-conversion-after-migration-in-exchange-2007/Vinod |CCNA|MCSE 2003 +Messaging|MCTS|ITIL V3|