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solox3
on Dec 12, 2013
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Gmail blows up e-mail marketing by caching all ima...
Do you know more about this? Are they, say, MD5ing images that are served, or can this be circumvented by changing a pixel for each request?
MichaelGG
on Dec 12, 2013
[–]
Even if they hashed every image returned, they'd have still made the request.
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