Steven Champeon says, "If your PTR contains or ends with IN-ADDR.ARPA, you're Doing It Wrong. Go read a book. That is all."
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3 hours ago
DUDE: YR DOIN' IT WRONG!
Steven Champeon says, "If your PTR contains or ends with IN-ADDR.ARPA, you're Doing It Wrong. Go read a book. That is all."
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Just the opposite - if your PTR record doesn't contain in-addr.arpa it probably won't work, unless there's some CNAME jiggery-pokery goin' on. :)
Marginally more seriously if your reverse DNS has in-addr.arpa in the final result (as opposed to the left hand side of the record, or any intermediate CNAMEs or glue records) then, yeah, you've probably made a mistake.
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