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About 2 years ago I came across an online tool that would allow you to append something to the end of a destination email address. When the email was opened, the tool would email you their geographical location. Does anyone know anything about this tool? If it still exists?

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Only way I can imagine that anything like this could have ever existed would be by sending an HTML email with a tracker image and geolocating by IP address. Most mail clients block remote HTML resources now for privacy reasons so that scheme would be dead in the water. – Martin Smith May 30 '10 at 23:19
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migrated from stackoverflow.com May 30 '10 at 23:47

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closed as off topic by Sathya♦, Nifle, quack quixote Jun 1 '10 at 2:01

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A few days ago I received an ad from such an application, but I've not researched it further.

http://www.didtheyreadit.com/

Hope that it helps

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