On a newly installed Exchange 2007 server that cannot send mail to or from a 2003 server I am receiving this messsage:Process edgetransport.exe (Transport) (PID=3284). Object CN=Mailbox Store (MAIL),CN=First Storage Group,CN=InformationStore,CN=MAIL,CN=Servers(remainder of CN removed)was not found on the Domain Controller(DC name removed). This may indicate a replication or permission issue.The Exchange 2007 can send mail externally but cannot receive mail back to a user from an external account. Currently the 2007 server is passing outgoing mail over the connector to the 2003 server and mail flows out. However; from the 2003 server email for receipients on the 2007 server are returned undeliverable. On the 2007 server, messages addressed to receipients on the 2003 server stay in the queue and eventually timeout.

Could you please run Get-Routinggroupconnector and see if bidrectional routing groups has been created? also make sure that you have good connectivity with DC and GC Vinod |CCNA|MCSE 2003 +Messaging|MCTS|ITIL V3|

hi,please run ExBPA to check your server' health...and can you check your routing information ;http://www.msexchange.org/tutorials/Exchange-Server-2007-Email-Routing-Part1.htmlregards,Mumin CICEK | Exchange - MVP | www.cozumpark.com | www.mumincicek.com

Could you please run Get-Routinggroupconnector and see if bidrectional routing groups has been created? also make sure that you have good connectivity with DC and GC Vinod |CCNA|MCSE 2003 +Messaging|MCTS|ITIL V3| Hi, I had same error on exchnage 2010 CAS.. I checked that bidrectional it seems working correctly...