Getting this back from some emails sent:
You do not have permission to send to this recipient. For assistance, contact your system administrator.
<mydomain.com #5.7.1 smtp;554 5.7.1 <firstname.lastname@example.org>: Relay access denied>
We have SBS 2003. We have a T1 service that has worked for us with no problem. I have a PTR that point to our mail server and the MX records points to our domain. No problem there.
This problem started when I added a second line - FIOS verizon service. I am trying to load balance the 2 lines. I had Verizon setup a PTR to point to our mail server, however when I do an mx look up, the mx record still points to the T1 static IP.
I assume I need to get the FIOS service to setup up an MX record as well to where it points to our mail serve?
Is it okay to set it up this way? basically 2 PTRs to the MX? Not sure what the standard practice is here.