DNS slowing down 220?

JD Doelitzsch jd at bentecmed.com
Mon May 22 21:46:16 IST 2006



-----Original Message-----
Is there a way to stop DNS lookups to test this? everything in the
resolv.conf is a valid dns server...

-JD

From: mailscanner-bounces at lists.mailscanner.info
[mailto:mailscanner-bounces at lists.mailscanner.info]On Behalf Of Alex
Neuman
Sent: Tuesday, May 16, 2006 2:48 PM
To: MailScanner discussion
Subject: Re: (no subject)


JD Doelitzsch escribió:
> Just a General question here. If im not using the delay feature on MS and
> its still taking about 15-20 secs to get the 220 which is causing a
timeout
> in some instances, and im using a P3 box. That means get a new box right?
>

>
>
>
Could be that you haven't implemented a caching DNS server and whoever
you have in /etc/resolv.conf is not answering right away. When someone
connects to your MTA it's probably going to try and resolve the name of
the IP address connecting to it, hence the delay.
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