1 Aug
2012
1 Aug
'12
5:35 a.m.
Quoting Craig Sanders (cas@taz.net.au):
that's not actually true. you can have as many PTR records as you like for a given rDNS entry.
http://en.wikipedia.org/wiki/Reverse_DNS_lookup#Multiple_pointer_records
Oh very well, yes, you can do that, but That Would Be Extremely Dumb, for various fairly obvious reasons -- and, more to the immediate point, would completely and automatically bollix any aim to resolve to any specific hostname to make some hypothetical MTA happy.