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From: Chris Cameron <chris@upnix.com>
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Subject: Re: Documentation of big "mail systems"?
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http://www.gangofone.com/~npc/doc/mail_arch.html

It's -old-, but I had it handy.

On October 12, 2004 03:20 pm, Stephane Bortzmeyer wrote:
> I'm currently writing a proposal for a webmail service for, say, 50
> 000 to 500 000 users. I'm looking for description of existing "big
> mail" systems, using technologies like scalemail
> (http://scalemail.sourceforge.net/), specially with an emphasis on
> the storage subsystem for the servers (my weak point, I don't really
> have enough experience with SAN, NAS, and so on).
>
> Of course, with a FreeBSD (and free software) bias :-)
>
> I do not need general advice (such as "Postfix rules, Exim sucks" or
> "Maildirs are faster") but actual description of existing and running
> systems. Googling seems inefficient for that purpose and I presume
> that many interesting papers are only in closed and paying conference
> proceedings :-(