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Date:      Sat, 28 Sep 2002 16:25:26 -0700
From:      Claus Assmann <freebsd+current@esmtp.org>
To:        Zhihui Zhang <zzhang@cs.binghamton.edu>
Cc:        freebsd-current@FreeBSD.ORG
Subject:   Re: Journaled filesystem in CURRENT
Message-ID:  <20020928162526.A7725@zardoc.esmtp.org>
In-Reply-To: <Pine.SOL.4.21.0209281753450.2260-100000@opal>; from zzhang@cs.binghamton.edu on Sat, Sep 28, 2002 at 05:57:09PM -0400
References:  <20020926204117.A9040@zardoc.esmtp.org> <Pine.SOL.4.21.0209281753450.2260-100000@opal>

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On Sat, Sep 28, 2002, Zhihui Zhang wrote:

> Hope I can bother you with two more questions (I know nothing about
> sendmail beyond its name):
> 
> (1) Can sendmail be configured to generate automatic messages for the
>     purpose of performance test?

No. sendmail is an MTA, not a performance testing tool...  There
are different "load generators" available: Netscape has something
(I forgot the name), postal is a test program (which I never got
to compile), and smtp-source/smtp-sink from postfix. I have also
written some load generators, but they require a specific environment.

> (2) Is each mail stored in its own file?

The format of the sendmail mail queue is documented in doc/op/op.*
(should be in /usr/share/doc/smm/08.sendmailop on FreeBSD). In
brief: it uses two files: data (message body) and envelope / headers
/ some other routing data.


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