Good day all, I wonder if anybody can help me. I have 2 domains. Domain A and Domain B. Domain B use e-mail address user@A.com 2003 (exchange) Domain A use e-mail address user@A.com 2007 (exchange) I want to send a message From Domain A to Domain B but its not working as Domain A says the account doesnt exist. How Can i rout mail From Domain A to Domain B Please help. Thank you

It looks like you have only one SMTP domain @A.COM Now you mean mailboxes in AD DOMAIN A is not able to send Mails to Mailboxes in AD Domain B? Vinod |CCNA|MCSE 2003 +Messaging|MCTS|ITIL V3|

Thats correct. I have2 seperat domain using the same SMTPDomain A - Contoso.com using SMTP @contoso.comDomain B - ContosoB.com using SMTP @contoso.com

Do you see users in GAL in both domains? You need to make sure that you have RG connector in place between Ex007 and EX2003 From EX2007 EMS run the below command Get-RoutingGroupConnector see if it shows both connector or else you need to create one New-RoutingGroupConnector -Name "Interop RGC" -SourceTransportServers "Ex2007Hub1.contoso.com" -TargetTransportServers "Ex2003BH1.contoso.com" -Cost 100 -Bidirectional $true -PublicFolderReferralsEnabled $true Vinod |CCNA|MCSE 2003 +Messaging|MCTS|ITIL V3|

are these two separate exchange organizations? if they are, you'll need to create a send connector to connect them. http://technet.microsoft.com/en-us/library/aa998936.aspxif they are in the same exhange organization, then you are most likely missing a routing group connector as vinod described

I can see the GAL,This is 2 seperate DomainsError [PS] C:\Windows\System32>Get-RoutingGroupConnector[PS] C:\Windows\System32>Get-RoutingGroupConnector[PS] C:\Windows\System32>New-RoutingGroupConnector -Name "Interop RGC" -SourceTransportServers "Contoso.com" -TargetTransportServers "ContosoB.com" -Cost 100 -BiDirectional $true -PublicFolderReferralsEnabled $trueNew-RoutingGroupConnector : Exchange server "ContosoB.com" was not found. Please make sure you have typed it correctly.But i can ping the server from both domains

contoso.com and contosob.com should be the actual transport server names (these are just domain names)

You have not mentioned the FQDN of your EX2003 and EX2007 server New-RoutingGroupConnector -Name "Interop RGC" -SourceTransportServers "Ex2007Hub1.contoso.com" -TargetTransportServers "Ex2003BH1.contoso.com" -Cost 100 -Bidirectional $true -PublicFolderReferralsEnabled $true in the above example Ex2007Hub1.contoso.com is Source 2007 server Ex2003BH1.contoso.com is the Target 2003 server Vinod |CCNA|MCSE 2003 +Messaging|MCTS|ITIL V3|

New-RoutingGroupConnector -Name "Interop RGC" -SourceTransportServers "Exch1.contoso.com" -TargetTransportServers "Exch2003.contosoB.com" -Cost 100 -Bidirectional $true -PublicFolderReferralsEnabled $true The target server cannot be found??I can ping the server, IP and by name

Looks like it is looking the target server in CONTOSO.COM domain where as it is CONTOSOB.COM domain Vinod |CCNA|MCSE 2003 +Messaging|MCTS|ITIL V3|

Thats right. 2 defernt domains on smtp address. How can i get this right?

They are root and child domain correct? Vinod |CCNA|MCSE 2003 +Messaging|MCTS|ITIL V3|

no they are not. 2 separated domain with a 2 way trust

this goes back to my original question, are these exchange servers in the same exchange organization?

O sorry, no they are not

@ the time of installing EX2007 it might have asked you for the BH servers? didn't you selected ex2003 server? Vinod |CCNA|MCSE 2003 +Messaging|MCTS|ITIL V3|

Oh Ok. In that case you need to create SEND CONNECTOR as mentioned by Jim Vinod |CCNA|MCSE 2003 +Messaging|MCTS|ITIL V3|

No it didn't asked me for a BH server.Do you maby have an example of how to created a send connector please

Here it is since both ORG sharing same smtp domain. http://technet.microsoft.com/en-us/library/bb676395.aspx Vinod |CCNA|MCSE 2003 +Messaging|MCTS|ITIL V3|

Thank you all very much for your time. Will test it now.

The company old domain is calledTV-Shopping and they are using user@shopping.com astheir current e-mail address The new domain is calledShopping and is also using user@shopping.com as their e-mail address. I have setup a two-way trust and can migrated users and groups to the new domain and its working 100%. My problem is thatNO users from the new domainShopping can't send mail to anybody in the old domain as the exchange returns mails as the users cannot be found in the Shopping domain and the same happens when you try and send from the old domain to the new domain.The old domain is using a 2003 exchange running on a 2003 std. Server. The new domain is running exchange 2007 on Windows 2008 std. Server. I have setup send connectors and tested but still its not working. Do you maybe have any idea what I can do to resolve this problem.Please help