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soffcecFlag for Iceland

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Exchange 2013 - unable to Relay

When I send email from Gmail to my new Exchange 2013 mail server Gmail get this error:

The error that the other server returned was:
550 5.7.1 Unable to relay

I cannot find out what I need to config in the Exchange.
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EMJSR
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You have to configure a connector in the Hub Transport settings. The following article is for 2010, but it should work in a very similar fashion:

http://exchangeserverpro.com/how-to-configure-a-relay-connector-for-exchange-server-2010/
SOLUTION
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Simon Butler (Sembee)
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ASKER

I did add all domains to  Accepted Domains and Receive connector has Anonymous enabled.
Now I don't get error back but no mail comes in to the Exchange.
Do a telnet test from a local workstation.
http://semb.ee/telnettest

Then use Message Tracking to see what Exchange actually did with the message. It might be blocked somewhere.

Simon.
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ASKER

Now I can receive but not send.  I get:#550 5.1.1 RESOLVER.ADR.RecipNotFound; not found ##
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ASKER

Sembee2 your answer was right.
I can send and receive now, but I cannot connect Outlook 2013 to the Exchange.
I am on a computer on same domain as the Exchange.
I get the error "the connection to microsoft exchange is unavailable. Outlook must be online or connected to complete this action."
When I press OK the Exchange General Tab comes up and tells me the name of the Exchange and also my name. There is a Check name button and when I press it I get the same error  "the connection to...."
After I press OK the system tells me it cannot start Oulook Window because my .ost file is not an Outlook file.
I suggest you open a new question, as that isn't related to your original question.

Simon.