The customer's CIDR Block: 65.69.21.192/27 Zone in my NS: 192/27.21.69.65.in-addr.arpa (this is from the SimpleDNS Plus reverse zone wizard) Mail server: smtp.gbltx.com [65.69.201.195]
If I nslookup 65.69.201.195, all is fine, if I nslookup 195.201.69.65.in-addr.arpa, it only lists NS records (mine and swbell.net's).
This is my first time dealing with reverse zones for anything other than /24 CIDR blocks.
Actually, http://www.dnsstuff.com/tools/ptr.ch?ip=65.69.21.192 shows that swbell isn't delegating authority for the reverse DNS to your servers -- it is simply reporting an answer of adsl-65-69-21-192.dsl.hstntx.swbell.net. You'll need to contact swbell.net to have them delegate authority for the reverse DNS to your servers.
-Scott
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