On Exchange 2010 server I have 2 send connectors one for "all email" and it uses smart host to barracuda and works fine. The other send connector we use for sharepoint and address space is sharepoint.domain.local and uses DNS.
The problem is with the sharepoint, emails send internally ok, but externally they give this error
the server response was 5.7.1 unable to relay...see attached
How can I correct this? On the Exchange 2003 server I had relaying on internal subnets as shown in the screenshot.
What do I need to do? Since I do not know what all this means please explain.