[EMAIL PROTECTED] wrote:

> I've received these messages in two separate log files for quite some
> time and I'd like to know how and where I need to go to rectify them?
> I have aliases, host.conf, hosts.allow, hosts.deny, hosts.equiv in
> /etc all setup to cover our network. I'm guessing, but could it be
> coming from unresolved named or some other mail configurations files
> (yes, newaliases was executed)?
> 
>      /var/log/maillog:2546:Mar  5 15:24:02 cdm01 sendmail[508]:
>      NAA00811: [EMAIL PROTECTED],
>      delay=01:54:28, xdelay=00:00:07, mailer=esmtp,
>      relay=campino.informatik.rwth-aachen.de. [137.226.116.240],
>      stat=Deferred: 451 <[EMAIL PROTECTED]>... Sender
>      domain must resolve
> 
>      /var/log/messages:7041:Mar  5 16:02:21 cdm01 named[312]:
>      Lame server on 'yourdomain.com' (in 'yourdomain.COM'?):
>      [207.202.14.31].53 'NS.NEON.NET'

If yourdomain.com refers to your domain, then it indicates that your
DNS is misconfigured. If it refers to someone else's domain, then the
problem is beyond your control.

`lame server' means that the server to which the domain has been
delegated by its parent doesn't consider itself to be authoritative
for the domain.

-- 
Glynn Clements <[EMAIL PROTECTED]>
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