>They responded that since we already had DNS setup by a local company >(Over The Net, who have been hosting our Website prior to us getting >AT&T), that OTN should create the PTR Record.
Idiots (my opinion). Forward and reverse DNS do not have to be hosted by the same entity. They are completely separate schemas through and through. The good news is that you have a PTR record of sorts. The bad news is that it was set up in a complex, yet RFC-compliant fashion that chokes some supposedly "real" lookups. It shouldn't choke mail servers doing non-draconian GetHostByAddr() calls, so you should be in the clear as far as sending mail. In a nutshell, ATT set up an alias (CNAME) record for your 18.200.35.12.in-addr.arpa, which OTN then resolves to the canonical name 18.16/28.200.35.12.in-addr.arpa. Then this second value's PTR RR gets looked up. Whilst RFC 1034 is sometimes misinterpreted to assume that this is illegal, RFC 2317 proves that it is not. See http://www.jhsoft.com/rfc/rfc2317.txt. Get AT&T to take back ownership if you want this to go away. Sandy Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/
