Need Recommendations

[Rabie van der Merwe]

I agree, it's always best to have a caching nameserver close by, if not on
the
same server, then onsite close by, also have you checked if your boxes are
under
load? What's your disk I/O and CPU doing?

You might need to tune it a little, play with the ammount of child processes

etc etc. I have found more often than not, the disk is the bottle neck, esp
if
you are running on a desktop, or on a server with raid 5 and/or no battery
backed
up cache (you want writeback caching [I think, I always get them the wrong
way round :) ])


You could also try and disable RBL maybe lookup is slow?

Regards
Rabie

-----Original Message-----
From: MailScanner mailing list [mailto:MAILSCANNER at JISCMAIL.AC.UK] On Behalf
Of Mike Kercher
Sent: 04 May 2005 19:17 PM
To: MAILSCANNER at JISCMAIL.AC.UK
Subject: Re: Need Recommendations

I would HIGHLY recommend a local caching nameserver on your MX boxen.  You
might also consider using the clamavmodule instead of straight clamav.

-----Original Message-----
From: MailScanner mailing list [mailto:MAILSCANNER at JISCMAIL.AC.UK] On Behalf
Of Derek Catanzaro
Sent: Wednesday, May 04, 2005 12:01 PM
To: MAILSCANNER at JISCMAIL.AC.UK
Subject: Need Recommendations

2 MX servers with the following

Dual 933Mhz 1 Gig of memory
FC1  (mailscanner and spamassassin need to be upgraded)
mailscanner-4.31.6-1
spamassassin-2.63

1.7Mhz 512 Memory (desktop)
FC2
mailscanner-4.40.11-1
spamassassin-3.0.2-1

I am experiencing a slow down in the delivery/processing of email on my
MailScanner servers.  I receive roughly 50,000 emails on a daily basis and
if there is a delay in the processing of any emails it can get backed up
very quickly.  I'm not sure if it is a DNS timing issue?, would anyone
recommend using local DNS in this case, or does anyone use it and have they
seen improvements?  Can anyone recommend anything in the MailScanner.conf
file that may help?

I have "Max children" set to 10 on the server with dual process and 5 on the
server with one processor, and "queue scan interval" is set to 6 on both
servers as well.  I am using Clamav as my virus scanner.  Please let me know
if you need additional info, and thanks in advance for your assistance.

Derek

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