Re: Reverse DNS RFCs and Recommendations

[John Miller]

As for A records and PTR records matching, we've taken the approach that 
we'll auto-create a matching PTR where there's only a single A record 
with that IP.  Otherwise, we'll add a PTR manually.

Plenty of applications can handle multiple A records; I'm not so sure 
that the same holds true for PTR records.

John