Unable to relay when using Exchange 2007 as SMTP server

Giganews Newsgroups
Subject: Unable to relay when using Exchange 2007 as SMTP server
Posted by:  Miha (miha.bern…@email.si)
Date: Thu, 11 Sep 2008

Hi,

we have an internal application which needs to send mail to external e-mail
addresses. I've configured the application to use Exchange 2007 to send the
mail as SMTP server. This Exchange server has HUB, Transport and CAS roles
installed. However, the application reports it cannot send mail due to the
following error:
SMTP response: unable to relay How can I configure Exchange 2007 so that it
accepts mail from the internal application and relays it externally ?
On receive connector I have enabled Anonymous users?
Any ideas ?
Regards,Miha

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