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[ale] Spam and HTML email

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

width="1" height="1">

See the webbug faq here:
Jason Day                                       jasonday at
http://jasonday.home.att.net                    worldnet dot att dot net
"Of course I'm paranoid, everyone is trying to kill me."
    -- Weyoun-6, Star Trek: Deep Space 9