Want to set up PTR record(s) to handle the following:
Site with mail server (Exchange 2010) has three Internet connections, with the firewall handling load balancing.
I know that if the Internet connection with the IP in the MX record goes down, then no email will be received. Would still like to send email if this happens.
Have read some advice for setting up a PTR record for one IP.
If I bind the email to the same IP as the MX record, and create a PTR record for that IP, am assuming that if that particular connection goes down, then any outgoing email sent via the other connections will fail a PTR lookup and be marked as spam.
Do you know a way around this?