Largely it will depend on your implementaion. DB access for config info,
spamassassin, A/V, webmail, etc. all have pretty drastic impacts on sys
design of the system at that number of users.
If it's vanilla exim, you'll be fine running it on a 2 proc system, with
enough disk space to accomodate the amount of storage space you are giving
your customers (accounting for over-subscription) with a healthy amount of
RAM.
I'd be happy to try to make more specific recommendations if you let us
know a bit more about your environment.
Regards,
Jerry
http://www.syslog.org
> Hello group,
>
> I was wondering about deploying exim on a server that would handle 10-30
> thousand ISP customer's accounts.
>
> I realize exim can likley handle this, but I was wondering what kind of
> server you'd all recommend (1,2 or 4 processor? ram? HD space?)
>
> Is it realistic to assume this level of functionality on an exim server
> that may also be hosting maybe a couple hundred small sites (IE the ISP
> customer type sites)
>
> Formerly I've used qmail to do this but I'd much rather do Exim if
> possible.
>
> TIA for any insight :)
>
> Lee.M
>
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