le probleme est corrig� merci de votre assistance Yannick Simon ----- Original Message ----- From: "Len Conrad" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, April 08, 2002 1:17 PM Subject: Re: [IMail Forum] Massmailing ...
> > >yesterday, i tried to use the Imail SMTP server v6.06 > >in order to send 150 000 + mails > > it's the queue processing that kills the throughput. best configuration: > > put the imail/spool in its own partition, containing no other directories. > > The spool partition should be on a separate disk and controller. > > If ATA, on its own ATA master channel with no slave deveice. > > The disk should be 160 mbyte/sec SCSI, and the controller should be > caching, 64 or 124 mbtyes of cache. > > Use Scott/Declude's queue kicker utility to generate many SMTP sending > processes, which means you'll need plenty of memory. > > For DNS (MX and A record lookups), use a dedicated DNS. > > You could, perhaps, avoid the weaknesses of IMail queue processing of very > high list volumes by > > a) having Imail send all outbound mail to an IMGate machine where the queue > processing is much better > > b) using a read list processor like Ecartis or Mailman or ezmlm running on > *nix (but still respecting all the above techniques for disk setup). > > If all the above works just right, you should get 30k to 40k msgs/hour, > meaning 150k msgs will take 4 or 5 hours, maybe 12 or 24. :)) > > If the list contains a high percentage of bad addresses (5 or 10%), then > the sending rate can be much lower than the above. > > Also, it's pretty easy to saturate a T1 line with large lists > delivery. When a T1, or other line, becomes saturated, or every above 60% > utilization, the throughput can degrade horribly. > > Len > > http://MenAndMice.com/DNS-training > http://BIND8NT.MEIway.com : ISC BIND for NT4 & W2K > http://IMGate.MEIway.com : Build free, hi-perf, anti-abuse mail gateways > > > Please visit http://www.ipswitch.com/support/mailing-lists.html > to be removed from this list. > > An Archive of this list is available at: > http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > > Please visit the Knowledge Base for answers to frequently asked > questions: http://www.ipswitch.com/support/IMail/ Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Please visit the Knowledge Base for answers to frequently asked questions: http://www.ipswitch.com/support/IMail/
