[Mailman-Users] Config dump? - WAS Re: speed up mailman

[Ruben Safir]

On 02/29/2016 04:19 AM, Stephen J. Turnbull wrote:
>  > From looking at your Postfix logs, it looks as though you have a major
>  > DNS problem.  I suggest that you install bind and set up a caching DNS
>  > server on the same box that is running Mailman.
> 
> Good idea, but I suspect that wouldn't help enough, as the test I did
> on gnutelephony.org timed out.  You don't cache a timeout, you retry
> (or if you're human, you curse the spammers and remove the address).
> That was at home, now, with a university-grade network connection, I'm
> getting NXDOMAIN.  It takes ~10s (middle of 3), though, which is a
> pretty substantial delay.[1]


bind is running on the server and is the primary DNS and has been for a
little over a decade?

Bind and the DNS can handle the workflow, or it has since 1998.  I don't
believe it handles a single connection at a time...

and neither does postfix.  I'll try to run everything on 12.0.0.1 8000
like was recommended, but truly it doesn't make sense to me that any of
these things should cause such a slowdown.  Postfix used to handle
nearly 500 simultaneous outbound requests with no problem, regardless
how many bad email addresses are present.  failure is PART of email, and
not an exceptional occurrence.


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