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Re: [Asrg] Some data on the validity of MAIL FROM addresses

mathew <meta@pobox.com> Fri, 23 May 2003 17:21 UTC

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Subject: Re: [Asrg] Some data on the validity of MAIL FROM addresses
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Date: Thu, 22 May 2003 19:26:36 -0400
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On Sunday, May 18, 2003, at 22:23 US/Eastern, Kee Hinckley wrote:
> At 8:27 PM -0400 5/18/03, Yakov Shafranovich wrote:
>> What I do expect is that users will not reply to challenges that come 
>> from strangers - if spammers start using someone's email address for 
>> the "FROM"
>
> I fear you are being optimistic.  Having spent much more time than I 
> would like doing email customer support, I tend to think that you'll 
> get two major categories of responses.
> 	1. Scared by challenge, doesn't reply to any.
> 	2. Finally figured out that challenges are okay, replies to all.
> I can't offer concrete evidence for that.

Consider the ActiveX warnings about unsigned code. How effective have 
they been at deterring the spread of web-installed spyware?


mathew

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