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Date:      Fri, 21 Nov 2003 17:28:17 -0500
From:      David <david@madcoders.com>
To:        freebsd-isp@freebsd.org
Subject:   huge email system
Message-ID:  <20031121222817.GD19888@phobia.ms>

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Hello -

We need to build a stable, redundant, and speedy email system that will last for a few years.  We need to handle about 500,000 emails per day.  We have about 30,000 users, so we need a lot of storage.

Our current plan was to implement the following.
2 SMTP only servers.
3 NFS servers with RAID and SCSI
2 POP3 servers.


But that leads us to questions such as -
 - what would be the best way to authenticate?
 - would the NFS servers need gig nic's? or dual bonded 100Mbit cards?
 - what smtp server and what pop3 server to use (we want to use Maildir)
 - what raid level?

Any suggestions on how to implement an email system to handle the load stated above would be greatly appreciated.

Thanks
David


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