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

Ruben Safir mrbrklyn at panix.com
Mon Feb 29 05:13:57 EST 2016

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 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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