[CentOS] How to size an email server to handle 5 million emailsperday

On 8/23/07, Feizhou <feizhou at graffiti.net> wrote:
> Mike Kercher wrote:
> > Well, of the 5M, how many would be real emails?  I handle over 1M on a
> > quad xeon, but only a fraction of those are good.
>
> Heh. Yeah, I count emails as stuff that will be delivered, stuff that
> will hit the queue. I guess my definitions have got in the way of this one.
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Right, actually the box will run an AV engine with antispam then
delivered to a ms exchange 2003 server (local lan), so no local
mailbox is being used.

The barracuda spam firewall 400 appliance handles my specs but i
cannot get info on what hardware they run, it's a 1u raid1, linux
hardened presentation but no idea of the cpu or ram.

And no, it won't be used for marketing, it's inbound only.