Hi all, I have an interesting situation that I'm sure has an easy fix. We have to companies merging, sharing two different domains with one being the main email server. Company A has xyz.com Company b has zxy.com Company A is going to hold the mx records for both domains. Email is going to come in to company a, then if the email doesn't match, it will be forwarded to company b's mail server. This works fine, however, internal email from company A to company B is not working. It's getting stuck in queue. The mail doesn't seem to be following the rules that external mail is following. I believe it's getting stuck because of some kind of DNS lookup loop (ie it's looking up zxy.com, trying to send the mail to its self since the mx record points to company a) Is there an easy way to fix this? Both are Exchange 2003. Thanks

Hi WHen you are setting up the zxy.com to be received in Company A you need to set that to internal relay, not to authoritative Give us the details of the settings you've usedJonas Andersson MCTS: Microsoft Exchange Server 2007/2010 | MCITP: EMA 2007/2010 | MCSE/MCSA Blog: http://www.testlabs.se/blog

So the default smtp is set to have if no recipient match found, forward to company b. zxy.com is set in the recipient policy as non-authoritative.

Can you give us the exact details of the mailflow?Jonas Andersson MCTS: Microsoft Exchange Server 2007/2010 | MCITP: EMA 2007/2010 | MCSE/MCSA Blog: http://www.testlabs.se/blog

Mail for both domains comes through Company A's mail server. Company A has a recipient policy for both Company A and Company B. Default Virtual SMTP forwards all mail that doesn't match a recipient at Company A to company B's mail server. This works for all external email. However, an internal user at Company A sending email to company B does not seem to work. It gets stuck in queue.

Can you setup a smtp send connector to Company B and point to their server?Jonas Andersson MCTS: Microsoft Exchange Server 2007/2010 | MCITP: EMA 2007/2010 | MCSE/MCSA Blog: http://www.testlabs.se/blog

Could you please give me instructions on how to do this. I have it setup, but it might be incorrect.

Bump. Still cannot get this going.

Hi You can use a cmdlet to create it or console new-SendConnector -Name 'Company B' -Usage 'Custom' -AddressSpaces 'SMTP:*.zxy.com;1' -IsScopedConnector $false -DNSRoutingEnabled $false -SmartHosts '[serveriptodestination]' -SmartHostAuthMechanism 'ExchangeServer' -UseExternalDNSServersEnabled $false -SourceTransportServers 'SERVER03' You maybe have to modify this a little, give it a try :)Jonas Andersson MCTS: Microsoft Exchange Server 2007/2010 | MCITP: EMA 2007/2010 | MCSE/MCSA Blog: http://www.testlabs.se/blog

Jonas, infusednz is using exchange 2003 How to Create an SMTP Connector to Route Mail to a Specific Host How to share an SMTP address space in Exchange 2000 Server or in Exchange Server 2003James Luo TechNet Subscriber Support (http://technet.microsoft.com/en-us/subscriptions/ms788697.aspx) If you have any feedback on our support, please contact tngfb@microsoft.com

Jonas, infusednz is using exchange 2003 How to Create an SMTP Connector to Route Mail to a Specific Host How to share an SMTP address space in Exchange 2000 Server or in Exchange Server 2003 James Luo TechNet Subscriber Support (http://technet.microsoft.com/en-us/subscriptions/ms788697.aspx) If you have any feedback on our support, please contact tngfb@microsoft.com Opps, sorry didn't see that :) But you posted some good links there!Jonas Andersson MCTS: Microsoft Exchange Server 2007/2010 | MCITP: EMA 2007/2010 | MCSE/MCSA Blog: http://www.testlabs.se/blog