I have configured an "Accepted Domain" for an external domain. Lets call it mydomain.com. My exchange server is sat in an internal network mydomain.local.
I can receive and send emails from @mydomain.com addresses but the recipients seem to see the email as spam. The only thing I can think it would be is that the from server and the email domain are different. In the email header exchange uses: "From: exchange.mydomain.local".
How can I set it up to send from "From: exchange.mydomain.com"? And how can this be applied to hosting more domains on the same exchange seve