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On Mon, Jan 05, 2004 at 02:22:58PM -0500, Jason Day wrote:
> On Mon, Jan 05, 2004 at 10:51:48AM -0500, Geoffrey wrote:
> > You can certainly validate an email address by embedding a link to a 
> > unique image in a message if the mail tool displays images.  Simply 
> > create a 1x1 pixel white image and name it to be unique, as:
> > 
> > esotericAT3times25.net.png
> > 
> > And then send it to me.  If my browers opens the image, there'll be a 
> > record of such in the web server that's serving the image.
> 
> Oh, it's much worse than that.  You could put something like this in an
> email:
> 
> <img
&gt; src=&quot;<a  rel="nofollow" href="http://3times25.net/cgi-bin/webbug?email=esoteric%403times25.net&amp;UNIQUE_ID=blahblah&amp;timestamp=2004.01.05.13.20.00&quot";>http://3times25.net/cgi-bin/webbug?email=esoteric%403times25.net&amp;UNIQUE_ID=blahblah&amp;timestamp=2004.01.05.13.20.00&quot</a>;
&gt; width=&quot;1&quot; height=&quot;1&quot;&gt;
&gt; 
&gt; See the webbug faq here:
&gt; <a  rel="nofollow" href="http://www.eff.org/Privacy/Marketing/web_bug.html";>http://www.eff.org/Privacy/Marketing/web_bug.html</a>


</pre>
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<li><strong><a name="00106" href="msg00106.html">[ale] Spam and HTML email</a></strong>
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