I send out a monthly newsletter to a user base of 2.5 million
using qmail. The marketing department stages the emails to be
sent with 500,000 a day to track how it effects the web site.
I use a pentium box with 128M ram, a raid disk with one
qmail queue and OpenBSD. Delivery rates on that one machine run between
750,000 to 1.2 million per day, max.
concurrent remote delivery is 255
CPU usage varies between 20 and 70%
(it's not dedicated to just qmail)
I wrote a simple program to read a file of To: addresses
and a file with the body. It calls qmail-queue directly,
and monitors the queue size to self throttle itself.
One to: address one qmail-queue invocation.
A more efficent method would be similar to how ezmlm works..
Batch up groups of email addresses with one invocation of
qmail-queue. I think that would result in less disk I/O and
higher delivery rates.
Hope that gives you some real world info
Ken Jones
Inter7
http://www.inter7.com/qmail/
On Fri, Jun 04, 1999 at 01:04:25PM -0700, Mylo wrote:
> Not sure if this went through the first time, I got a help msg back
> so here goes again:
>
> Hello all,
> I am investigating using qmail to send a mass mailing to our 2M user base.
> Currently we have been using sendmail. First, let me describe our current
> setup. We have 26 different sendmail's running as deamons on 26 different
> mqueue's. We then have a program that pulls user information out of our
> database and creates the qfAA and dfAA files into these queue's. It dumps
> 10,000 messages in each queue, then moves onto the next queue, leaving
> sendmail to distribute the messages from the queue. This is however,
> insanely slow. From what I've seen/read/and heard Qmail will be able to
> accomplish our 2M mailing a lot faster than sendmail, however I believe that
> a large part of our bottleneck is that we create queue files and expect
> sendmail to recognize it. Okay, now to the question: What would be the
> best way of doing this with Qmail? Running multiple deamons on multiple
> queue's? or can Qmail do this all automatically. I am very unfamiliar with
> the Qmail configuration so any assistance would be greatly appreciated.
> Please reply directly to <A HREF="maito:[EMAIL PROTECTED]"> [EMAIL PROTECTED] </A>.
> Thank you.
>
> -- Tim "Mylo" Madams
> -- [EMAIL PROTECTED]
>
