I think this comes from having the deny null sender box checked in SMTP security.  The 
only problem with this is that it sometimes blocks return receipts from exchange 
servers.

MAtt


---------- Original Message ----------------------------------
From: "Ted Galerneau" <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
Date: Tue, 18 Apr 2000 18:48:34 -0700

>Looks like someone is hitting your spam filters and being blocked. Chances
>are their server will quit trying after a while, depending on how their
>server is setup. If my assumption is correct, there is not much that can be
>done about it unless you let it through. Of course doing that defeats the
>purpose of spam filtering, which is a catch 22 situation.
>
>Ted Galerneau,
>Ironwood Express Web Services
>Email [EMAIL PROTECTED]
>(206) 444-4912
>(800) 559-3424
>
>-----Original Message-----
>From: [EMAIL PROTECTED]
>[mailto:[EMAIL PROTECTED]]On Behalf Of [EMAIL PROTECTED]
>Sent: Tuesday, April 18, 2000 6:37 PM
>To: [EMAIL PROTECTED]
>Subject: [IMail Forum] Are we being used by AOL??? Help me decode this file.
>
>The following is showing up twice a mimute in our log files which are HUGE.
>What does it mean? How do I stop it?
>
>Sincerely,
>
>David Kaleky                                      [EMAIL PROTECTED]
><mailto:[EMAIL PROTECTED]>
>Florida Super Site, Inc.                     http://www.FLORIDA.com/
>Tel: 407-647-4445                            FAX: 407-975-8100
>
>
>
>
>
><!--StartFragment-->04:17 22:23 SMTPD(00220246) [207.247.24.244] connect
>205.188.156.76 port 4604
>220 X1 NT-ESMTP Server florida.com (IMail 5.04 3288-8)
>EHLO aolmbd02.mx.aol.com
>04:17 22:23 SMTPD(00220246) [205.188.156.76] EHLO aolmbd02.mx.aol.com
>250-florida.com says hello
>250-SIZE 0
>250-8BITMIME
>250-DSN
>250-ETRN
>250-AUTH LOGIN PLAIN
>250-AUTH=LOGIN
>250 EX
>04:17 22:23 SMTPD(002E024C) [207.247.24.244] connect 205.188.156.77 port
>1899
>220 X1 NT-ESMTP Server florida.com (IMail 5.04 3289-9)
>MAIL From:<> SIZE=3255
>501 bogus mail from
>04:17 22:23 SMTPD(00220246) [205.188.156.76] bogus address in MAIL From:<>
>QUIT
>221 Goodbye
>
>
>
>Please visit http://www.ipswitch.com/support/mailing-lists.html
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>
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