On Thursday, February 27, 2003, at 04:29 PM, Bill Holt wrote:

>>
>>  121.  02/23/03 00:32:25 <owner-macgroup at erdos.math.louisville.edu>
>>              Rejected known spam domain optonline.net in From: header
>>
>
> Frankly, I don't know what to make of it, but if there was something 
> sent
> that I really should have received, I've now added the "louisville.edu"
> domain to my specific permit list so it should get through.

Here's part of the header on the apparently offending message

Date: Sun, 23 Feb 2003 00:27:19 -0500
From: Tony LaFemina <[EMAIL PROTECTED]>
Subject: Re: MacGroup: Software Laws
To: macgroup at erdos.math.louisville.edu
Message-id: <3E585BB7.80301 at optonline.net>
MIME-version: 1.0
Content-type: text/plain; charset=us-ascii; format=flowed
Content-transfer-encoding: 7BIT
X-Accept-Language: en-us
User-Agent: Mozilla/5.0 (Macintosh; U; PPC; en-US; rv:0.9.4) 
Gecko/20011022
  Netscape6/6.2
References: <ADCB11F6-46B6-11D7-B61C-0030659AEAFC at mac.com>
Sender: owner-macgroup at erdos.math.louisville.edu
Precedence: bulk
Reply-To: macgroup at erdos.math.louisville.edu

It looks to me like your filter is objecting to the domain in the 
"From" line, not to the sender. The domain optonline.net appears to be 
the broadband service of Cablevision. At one time or another most of 
the cable broadband domains get blacklisted by the spam cops. This 
happens because some of their users were either clueless or careless 
enough to leave a mail relay open for the spammers to abuse.



| The next meeting of the Louisville Computer Society will
| be March 25. The LCS Web page is <http://www.kymac.org>.


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