What server for a mail server

[Per olof Ljungmark]

Olivier Nicole wrote:
> Hi,
> 
> I have a project where I should set-up a mail server for approximately
> 12000 users, 4000 virtual domains, 15000 messages per day, 700 MB
> traffic per day.
> 
> The machine should run Postfix, courrier-imap and a web mail (probably
> squirel), Apache 2, spamassassin, clamav, greylist
> 
> What type of machine should I target, in terms of CPU and RAM?

My advise would be to run Postfix and mail scanning on a separate box.

--per