I have an Exchange 2007 server trying to send mail to one particular domain and it keeps getting rejected saying there is an invalid PTR record.. here is the exact error message..
"mail.premier-technologies.net #501 Connecting IP must have valid PTR record for xx.xx.xx.xx ##"
Now, i have checked on MXToolbox for various checks..
*My MX record points to .. mail.domain. com as my proper public IP address
*I do a reverse lookup on that public IP address and i produce a PTR record that shows my public IP address in reverse order
I have an A record that points to my webmail.domain.com
Do I also need to have an A record created that points mail.domain.com to my public IP?
I'm at a loss as to why this one domain is rejecting emails from my domain with invalid PRT record error message