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Exchange 2010 Relay to external domain fails, mails stock in send queue.

Posted on 2012-04-01
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Last Modified: 2012-08-13
Hi

I have made a new Relay receive connector soo my internal app. server can relay mails trough my Exchange server, this seem to work okay when I relay mail for internal Email adr. when it try to realy mail to external email adr. it leaves the app server okay, but then it stuck in my outgoing send connector on Exchange.

I have an Edge between my internal mail server and the internet and i am using a smarthost.

External mails send from Outlook client work fine. It´s only external mails relayed from app. server which is getting stock at the send connector.
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Question by:Henrik_S_Andersen
8 Comments
 
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Expert Comment

by:Alan Hardisty
ID: 37792580
Did you use the Exchange Management Shell to grant the Receive Connector Relay permissions:

http://technet.microsoft.com/en-us/library/bb232021.aspx

Get-ReceiveConnector "Receive_Connector"| Add-ADPermission -User "NT AUTHORITY\ANONYMOUS LOGON" -ExtendedRights "Ms-Exch-SMTP-Accept-Any-Recipient"
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Author Comment

by:Henrik_S_Andersen
ID: 37792834
YEs i did use EMS to grant the recive connector relay permission.

I also tried this setup:

New-ReceiveConnector -Name RelayConnector -usage Custom -Bindings ’x.x.x.x:25' -fqdn server.domain.com -RemoteIPRanges x.x.x.x -server MYEXCHANGESERVER -permissiongroups ExchangeServers -AuthMechanism ‘TLS, ExternalAuthoritative’

Recive connector works okay, i can telnet MYEXCHANGESERVER 25 from my app serveres, and the mail will be send but stock in send connector queue. See attach screendump.

But mails send from outlook clients don´t get stock in send connector queue
telnet.jpg
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Author Comment

by:Henrik_S_Andersen
ID: 37792846
I get the following error on send connector 451 4.4.0 Primary Target IP address responded 421 4.2.1 unable to connect.

Againg this only happens on mail send to external through the new Relay receiver
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Expert Comment

by:atuldangi
ID: 37793040
Just disable you antivirus software and it should work.
Generally McAfee AV blocks it. You may add MS Exchange server folder found in c:\program file to exclusion list in AV software and also exclude all exchange databases from being scanned.

It will work.
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Expert Comment

by:suriyaehnop
ID: 37793495
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LVL 3

Expert Comment

by:Padamdeep
ID: 37794437
If messages are stuck on hub then relay connector is fine.
Do you have a specific send connector to send those messages?
If yes, what is the source server on that send connector?

Singh
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Accepted Solution

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Henrik_S_Andersen earned 0 total points
ID: 37794876
Strange...

I just deleted the Relay Receiver and created it again with same powershell script restarted transport service, and now it works :)

Microsoft!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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Author Closing Comment

by:Henrik_S_Andersen
ID: 37869853
I managed to solve the problem my self
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