I have a exchange 2007 server which i am trying to configure a Relay for. We have a HP MFP that uses smtp for Send To Email.
I created a new receive connector and set the remote IP to the IP of the mfp. On the authentication tab i turned all them off. On the Permissions Group i have Anonymous users checked.
When i try to send to email it is able to send to internal emails perfectly but when i send to a outside email it fails. When i look in the logs on the server it says "550 5.7.1 Unable to relay,"
Any ideas if i am missing something for outgoing emails?