On Wed, Jun 8, 2011 at 11:08 AM, Martin Hepworth <max...@gmail.com> wrote:
> Have a look at the Hermes mail system at cam.Ac.uk, built buy among
> people Philip Hazel of exam fame
>
> It will give you some insight into the challenges of building a
> scalable high perfomance mail system.
I rolled postfix, OpenLDAP, MySQL and @mail on a bunch of blades and NetApp
storage which ran about 200K users for years without any problems. We had
Alteons for load balancing.
For spam/virus/etc I used the IronPort boxes (before they were Cisco). We very
rarely had any problems with this, OpenLDAP broke once, but since the LDAP
front ends were behind Alteons nobody ever noticed it.
The whole thing cost less than the licenses for most commercial systems we
looked at.
--
Leigh Porter
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