Re: [Exim] Recommended Settings for Performance

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Autor: Philip Hazel
Datum:  
To: Joseph Kezar
CC: exim-users
Betreff: Re: [Exim] Recommended Settings for Performance
On Thu, 10 Jan 2002, Joseph Kezar wrote:

> Perhaps, in the next publication or the new O'reilly (or README) update
> coming in a bit we could have a configuration chapter. In this chapter or
> section it could have different catagories. If you have 1-30 users - do
> this. If you have 1-100 use this config. If you have 1-1000 this config
> will meet your needs. And if your like me. 1-2000+(inclusing Freaking
> spammers who account for A_HELL_OF_A_LOT) the configuration is best like
> this:


My problem, as author, is that I don't actually know the answers you are
seeking. My suspicion is that there isn't in fact one answer in each
case. It depends so much on the circumstances. Especially how much mail
you are actually sending. It also depends on what you mean by "users".
Off the top of my head, these are the first questions that come to my
mind:

Are the users individuals, are they companies, are they your
staff/students, are they your customers? Are you running a cluster of
small boxes, or a few big boxes? What speed is your Internet connection?
Do the users log in to your boxes or do they send with SMTP? Are the
mailboxes on your system? Are mailing lists involved? Is mail hubbing
involved? How fast is your Internet connection?

Basically, I have far too much to do already keeping the software
developed and maintained. It's really up to other people to find the
limitations and best configurations for their circumstances. Several
people on this list have posted or published advice on configurations.



--
Philip Hazel            University of Cambridge Computing Service,
ph10@???      Cambridge, England. Phone: +44 1223 334714.