I can only talk from experience; we are currently doing spam and anti-
virus checks in our inbound flow of around 600,000 messages per day.
To do this we have three inbound SMTP gateways running Sophos
Puremessage with Sendmail as the MTA.. These systems are quad proc
systems with 6 to 8 GB of ram. This is still not enough to handle the
inbound flow efficiently at our organization.
We are currently looking into Ironport, which should be able to handle
our entire inbound and outbound flow on one system. They say that they
have the ability to drop around 98% of traffic that is coming in using
reputation filtering, anti-spam checks and anti-virus checks. We have
been demoing the device for a couple of months and I am really happy
with it, it has been doing what was promised.
Josh G.
On Jan 3, 2008, at 9:21 AM, Ugo Bellavance wrote:
Erick Perez wrote:
I have no idea as to how to size an email server. I was approached by
a customer that wanted a single server with RAID 1 disks to handle
about 5 million emails a day.
In general terms, what parameters should I take into account to size
the hardware specs when the average email is about 10kb, the smalles
email is 2kb and the largest email is about 5meg (with attachment)
thanks,
I don't know if you have done it yet, but Fort System's new
offering, BarricadeMX, could help you cut spam.
http://www.fsl.com/barricademx.html
It is closed-source, but FSL gives a lot to open-source communities,
especially MailScanner's.
Ugo
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