Hello,
I would like to get some advise on setting up the SPF record for Exchange on-premises 2013 that has Google Message Security (Postini) as its front-end spam filtering service.
Domain: mail.domain.com
External IP for mail server: 37.X.X.62
Default Gateway: 37.X.X.61 (Outbound Email) - The external receipts receive the Emails from mail.domain.com (37.X.X.61).
PTR Record:
PTR record is currently setup for the default gateway IP 37.X.X.61, I would also like to add the PTR record for my mail server IP. Is it recommended to have a PTR record published for the mail server IP as well? Technically, 2 IP addresses will be pointing to one PTR record mail.domain.com.
Thanks!