Exchange 2013 Internal Relay via Smart Host

Posted by Matt Clements on Server Fault See other posts from Server Fault or by Matt Clements
Published on 2013-06-25T11:42:15Z Indexed on 2013/06/26 10:23 UTC
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Filed under:

exchange

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smtp-relay

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exchange-2013

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microsoft-smtp

Thank you for your help in advance! I am currently setting up an Exchange 2013 server, to replace our old POP3/SMTP system, however we would like to roll this out gradually when convenient for our staff.

Our plan is therefore:

Setup Exchange 2013 to retrieve email via POP Connector - Done
Setup Exchange 2013 to send ALL mail via a SmartHost - Issues

I have set the domains in Mail Flow > Accepted Domains to Internal Relay, enabled a Smart Host for * as the domain name, and disabled/deleted the accounts that are not setup yet; however Exchange just bounces the emails with no errors.

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