Re: [Gnu-arch-users] Slow mailinglist, DNS problems?

[Andrew Suffield]

On Thu, Aug 21, 2003 at 11:24:55PM -0400, Jan Harkes wrote:
> The long delays could be explained by having one or more bad nameservers
> listed in /etc/resolv.conf. The spam-scan is probably trying to look up
> the sender's domain in several RBL lists etc. Having a local caching
> nameserver (bind/pdns/dnsmasq) should speed that up considerably and
> drop the roundtrip time down to just over 1 hour, avoiding the
> batch-wise processing (or removing some of those intermediate steps)
> should bring it even further down.

They could be explained by such a scenario, but there are others
too. This one is more compelling by reason of evidence:

> This message was created automatically by mail delivery software.
> A message that you sent has not yet been delivered to one or more of its
> recipients after more than 24 hours on the queue on mx20.gnu.org.
>
> The message identifier is:     19p8vB-0004Ba-MR
> The date of the message is:    Tue, 19 Aug 2003 17:00:41 +0100
> The subject of the message is: Re: [Gnu-arch-users] Re: the dangers of no 
> reply-to munging;
> Xouvert update
>
> The address to which the message has not yet been delivered is:
>
>   address@hidden
>     Delay reason: SMTP error from remote mailer after initial connection:
>     host mx10.gnu.org [199.232.76.166]: 421 monty-python.gnu.org:
>     Too many concurrent SMTP connections from this IP address; please try 
> again later.

Of course, by the time you see this, it could have been fixed.

-- 
  .''`.  ** Debian GNU/Linux ** | Andrew Suffield
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