Re: [Exim] Exim for 6M users?

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Autor: Konrad Michels
Datum:  
To: Yann Golanski
CC: exim-users
Betreff: Re: [Exim] Exim for 6M users?
Oh, by the way: I wasn't in any doubt as to Exim's capabilities - I am
more concerned about getting the hardware spec right!

On Thu, 2003-03-13 at 16:26, Yann Golanski wrote:
> Quoth Konrad Michels on Thu, Mar 13, 2003 at 15:18:27 +0000
> > Afternoon folks!
> > Just been asked by my CTO to prepare some guidlines for a mail system to
> > cope with 6 million users, capable of coping with 2 million simultaneous
> > users without blinking too hard.
>
> Exim can do that easy.
>
> <aside> ... Hey Nigel, does that rings any bells? </aside>
>
> > My initial thoughts are along the lines of splitting the MTA function
> > into:
> > 1. incoming mail
> > 2. mailstore
> > 3. outgoing spool
> > 4. pop3 access
>
> Probably a good idea but not necessary the right answer.
>
> > All the above would live on separate machines/clusters of machines.
>
> Oh yes. Have you heard of Netapp?
>
> > Any comments? I know someone on the list had a white paper on a similar
> > scenario done with Exim 3.x - if that person would let me know again
> > where it is I'd be most appreciative!
>
> That would be me. The paper is available from my work pages at
> http://gridlock.york.ac.uk/~yann/lsm.pdf. Actually the system was
> started with exim 2 by Nigel and got moved to Exim 3 by myself. It
> should have moved to exim 4 by now -- If there is anyone from Energis
> still on the list, what's the status of that?. Most of the details are
> confidential but the paper gives a meta description of the systems that
> would work with all versions of Exim.
>
> I have given a talk on large scale systems at an Exim workshop last year
> and the notes are on http://gridlock.york.ac.uk/~yann/exim. Those should
> be your two main starting points.
>
> Getting a precise set of requirement regarding to what the whole systems
> is going to do is viatal. Virus scannering? Imap? Webmail? Spam
> filters? PGP? Mailing lists? ... there are many things that will
> determine what is the best answer for you.
>
> Feel free to share you proposal to the list (or just to me) and we'll
> all comment on that.

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