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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
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by:Alan Hardisty
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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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by:Henrik_S_Andersen
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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
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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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by:atuldangi
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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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by:suriyaehnop
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by:Padamdeep
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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
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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
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I managed to solve the problem my self
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