----- Message from Marco Pizzoli <marco.pizz...@gmail.com> ---------
Date: Mon, 1 May 2017 11:18:30 +0200
From: Marco Pizzoli <marco.pizz...@gmail.com>
Subject: Re: Optimising new system and postscreen questions
To: si...@simonandkate.net
Cc: Postfix users <postfix-users@postfix.org>
Hello Simon,
The server runs local caching DNS BIND, so it's as quick as I can get it on
the slow Internet connection we are on.
I don't qualify mysef expert enough to answer the rest of your points, but
for the DNS part I suggest you think about replacing BIND with Unbound, as
the DNS resolver. It has a property called min_ttl that permits you to
impose a minimum amount of TTL to the entries reported. DNSBL have always
real low TTL values, on purpose. If you are fne with relaxing this
real-timeness, well by setting a value of i.e. 60/90 seconds it will permit
you to reduce the network dependency.
Worth a try.
Marco
Thanks Marco, I'll investigate that. :)
Simon
--
Simon Wilson
M: 0400 12 11 16
