AOL still blocks Reverse DNS after it's setup

Barry Margolin barmar at alum.mit.edu
Thu Mar 3 02:07:25 UTC 2005


In article <d0526f$unt$1 at sf1.isc.org>,
 "AVB" <avanbaelen at macrotransport.com> wrote:

> I set up Reverse DNS for my mail server with zoneedit (who supports my
> dns) and with my ISP. If I go to www.dnsstuff.com and Reverse Query my
> server then it says it's succesfull. However my mail fails when sending
> to AOL. According to AOL
> http://postmaster.info.aol.com/cgi-bin/dns_tool.pl   "Reverse DNS must
> be in the form of a fully-qualified domain name - reverse DNSes
> containing in-addr.arpa are not acceptable, as these are merely
> placeholders for a valid PTR record. Reverse DNSes consisting only of
> IP addresses are also not acceptable, as they do not correctly
> establish the relationship between domain and IP address"
> 
> So I am a little lost. Why are reverse DNSes with in-addr.arpa not
> acceptable?? I thought thats how they are suppose to be setup. I have
> no other option but to set up a record in Zoneedit with the FQDN to
> IPaddress.in-addr.arpa PTR record. My ISP has also set up a reverse DNS
> entry (which I am assuming is correct cause test are successful). This
> is unfamiliar territory and ideas would be greatly appreciated! Thanks

Tell us your IP so we can tell whether the reverse DNS is correct.

-- 
Barry Margolin, barmar at alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***



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