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Date:      Tue, 29 Oct 2002 09:29:07 -0800
From:      Doug Hardie <bc979@lafn.org>
To:        "Matt Delaine" <mdelaine@intsolut.com>
Cc:        <freebsd-questions@FreeBSD.ORG>
Subject:   Re: Max Email Users
Message-ID:  <ED80F880-EB63-11D6-9DCF-000393681B06@lafn.org>
In-Reply-To: <003301c27f53$e7eedf80$1d01a8c0@mattd>

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On Tuesday, Oct 29, 2002, at 06:03 US/Pacific, Matt Delaine wrote:

> We are running FreeBSD 4.6 on a PIII 600 with 256 Meg RAM as our mail
> server.  At what point (how many users) will we start running into 
> trouble
> (have problems allowing us to send and receive email?)  Thanks.

I run an ISP and was using a PIII 200 MHz machine with 512 Meg Ram and 
supporting around 4000 active email accounts.  It also handled outgoing 
mail,  our admin functions, name service, YP master and some other low 
usage functions.   I recently upgraded to a newer machine because it 
was available an had more disk space.

With the old machine, I only say idle times under 90% when a user had 
their POP3 client set to not delete mail from the server and their 
mailbox grew to 100 MB or so.  Then the POP3 server has to do a lot of 
I/O to get to the new messages.  The issue is not so much the disk 
space as the time it takes to wade through all the old stuff.  I try to 
convince users to correct their configurations.


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