IMailSrv was running 100%?
Bob
---------- Original Message ----------------------------------
From: "Roger Weiss" <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
Date: Fri, 8 Oct 1999 00:53:25 -0700
>Found that iMail was running 100% duty cycles today, the first time for a
>long time!
>
>After shutting down iMail and killing smpt32d.exe I think I finally figured
>this out. If anyone has seen this before please let me know. The only way I
>found to stop this was to deny access to smtp32d.exe for execution by the
>system.
>
>1. Add a user called john
>2. Create a mail list called john
>3. Make [EMAIL PROTECTED] the list administrator
>4. Add john as the only member of the list
>5. Set up the list so that it requires that posts to the list be approved by
>the list administrator, who happens to be [EMAIL PROTECTED]
>6. Now send email to [EMAIL PROTECTED] with large (1 MB + ) binary
>attachments.
>Goto 6
>
> Watch the CPU grind to a halt as it sends this message to john numerous
>times, copying around this large binary file. The queue file shows that john
>sent the message numerous times.
>Also watch your disk space wither away as the log file grows.
>
>Here is what one of the files that was being sent looks like. Note the
>X-Sender is [EMAIL PROTECTED]
>which is repeated 1100+ times.
>
><< REGULAR MAIL HEADER APPEARS HERE>>
>From: "[EMAIL PROTECTED]"
>Subject: This will make you laugh your ass off ...
>To: [EMAIL PROTECTED]
>MIME-Version: 1.0
>Content-Type: multipart/mixed; boundary="0-846930886-939256781=:17526"
>X-Sender: [EMAIL PROTECTED]
>
> <<< AN ADDITIONAL 1100+ lines exactly like above go here >>>
>
>X-Sender: [EMAIL PROTECTED]
>Precedence: bulk
>Sender: [EMAIL PROTECTED]
>
>--0-846930886-939256781=:17526
>Content-Type: text/plain; charset=us-ascii
>Content-Disposition: inline
>
>=====
>
>__________________________________________________
>Do You Yahoo!?
>Bid and sell for free at http://auctions.yahoo.com
>--0-846930886-939256781=:17526
>Content-Type: audio/wav; name="Delta.wav"
>Content-Transfer-Encoding: base64
>Content-Description: Delta.wav
>Content-Disposition: attachment; filename="Delta.wav"
>
>UklGRvDQDABXQVZFZm10IBAAAAABAAEAESsAABErAAABAAgAZGF0YXnQDACC
><<< REST OF BINARY DATA GOES HERE, all 1MB of it >>>
>34OEhYOAgYKAfn+ChIODg4GCg4OCgX+AgoGBgoSHhYSFh4iHiY2LiYiGiIiF
>
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>Please visit http://www.ipswitch.com/support/mailing-lists.html
>to be removed from this list.
>
--
R. Stull
Programmer and
C++ code demolitions expert
Ipswitch, Inc.
http://www.ipswitch.com/
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