OSEC

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Re: [Old box, Newbie] Undelivered Mail Returned to Sender

From: Victor Duchovni (Victor.DuchovniMorganStanley.com)
Date: Thu Dec 13 2007 - 15:49:20 CST


On Thu, Dec 13, 2007 at 12:09:20PM -0800, Paul Rogers wrote:

> --- Wietse Venema <wietseporcupine.org> wrote:
> > No replies for an MX lookup? You're using a toy DNS server.
> > The answer is supposed to look like this:
>
> Is that because of my ancient libresolv, or my ISP? Can I fix it
> by specifying a different DNS server in resolv.conf?

The ISP DNS server. I've never seen a libresolv as broken as that.

Yes, but whose? Genereally, DNS servers only offer recursive service
to authorized clients. The ones that do recurse for everyone should not
generally be trusted...

--
        Viktor.

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