Re: [cobalt-users] RAQ2 - Still Can't send mail to AOL HELP!

[Jeff Lasman <jblists@xxxxxxxxxxxxx>]

Paul Alcock wrote:

> In my primary RAQ which has ns1.agilitysystems.com there
> are reverse records shown in the GUI for each domain.
> the format is ip -> domain.com

That's because you set it up your RaQ that way.

> But when I go to the network tools as someone suggested.
> http://www.network-tools.com/
> and do a DNS lookup on one of my domains' ip addresses,
> it reports that there is no reverse lookup.
> DNS query for xxx.xxx.xxx.xxx failed: Queried domain does not exist
> And if I use network-tools to do a dns lookup on the domain name
> it is able to traceroute to the domain but reports no reverse dns.

That's because your upstream (whoever provided you your IP#s) did NOT
delegate your IP#s to you.  I've been pointing out on this list for at
least three years that you cannot do your own reverse DNS unless your
upstream provider gives you the authority.

(Hint, for those of you who don't realize it, that means SEARCH THE
ARCHIVES <wry grin>.)

You MUST get your upstream to delegate reverse DNS to you, or you MUST
get them to do the reverse dns.

> So although the GUI is showing a reverse dns record, could it be
> that the reverse dns is the problem?????

Yes.  Definitely.  AOLs behavior in not forwarding mail when there's no
reverse DNS is extremely well known and well documented.

> ie. is my raq broke :(

No, your methodology is.  Either your upstream delegates reverse DNS
authority to you, or he does reverse DNS, or you find another provider.

Life should always be that simple <wry grin>.

Jeff
-- 
Jeff Lasman <jblists@xxxxxxxxxxxxx>
Linux and Cobalt/Sun/RaQ Consulting
nobaloney.net
P. O. Box 52672, Riverside, CA  92517
voice: (909) 778-9980  *  fax: (702) 548-9484