On 2008-03-29 at 02:03 -0500, Torry Crass wrote: > Well crap... That's kind of what I've been afraid of was that my issue with
> mail "may" be DNS related. What I don't understand is why it's not working
> for you when it works for me. The only thing that I have presently set up
> on the machine is iptables...maybe I've got something set up wrong there.
> I'll turn it off and if you could run the same test I'd appreciate it.
Okay, now I see: you're heavily filtering by IP space, somewhere. That,
or your upstream is.
A machine on a cable modem connection in the USA can query your DNS
fine, a machine in Europe can't.
No comment, because otherwise I'll say something I might regret later.