well I have very strange sendmail behaviour some times it sends 200+ emails/sec
and some times down to 30 emails/sec, and can't figure it out what's the issue
!
using sendmail for mailing list purpose

-k

Quoting Andrew Cowie <andrew@...>:
> On Thu, 2005-19-05 at 09:45 -0500, kashani wrote:
> 
> > Email throughput is highly dependent on how you're generating the 
> > emails, RAM, disk I/O, number of emails sitting in your queue, how 
> > you've ordered your emails, whether bounce handling is local or on 
> > another server, spam filtering if any, and your server software. Even 
> > the speed of your DNS server can start to play a part.
> 
> This is all astute commentary. I agree with all of it. Fine tuning an
> email system (or any production platform) takes ... finesse. It's not
> about "installing this software or that software", but about
> understanding the behaviour of your system as a whole, and then tuning
> the performance from a position of knowledge, not from one of
> assumption.
> 
> > 30/sec puts you a bit above 2.5 million a day which is probably the top 
> > end of what you might see in the real world.
> 
> Certainly seems a reasonable score.
> 
> I've run 3-5 million emails a day through a platform based on Qmail.
> Qmail has architectural bottlenecks on how it processes new messages;
> likewise you need to take care to shunt traffic to misbehaving domains
> to alternate queues - but making it sing was little to do with Qmail
> itself and very much to do with knowing what the group of systems as a
> whole were doing and making informed judgements thereon.
> 
> AfC
> Sydney
> 
> -- 
> Andrew Frederick Cowie
> 
> Technology strategy, managing change, establishing procedures,
> and executing successful upgrades to mission critical business
> infrastructure.
> 
> http://www.operationaldynamics.com/
> 
> Sydney   New York   Toronto   London
> 
> -- 
> gentoo-server@g.o mailing list
> 
> 




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