@pattonb said in DNS PTR Record with 2 FQDN Entries with SPAM Check:

@JaredBusch incorrect, Scott has summarized succinctly

That is what you asked. But going with that is not what you actually wanted, then the answer to your original post is that you don't fix anything.

You whitelist the domain in question and move on.

The sender's ISP is in charge of setting the PTR record and there is not a damned thing you can do about it.