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I would assume that a unique pixel is generated by Mailchimp for every recipient to prevent this form of caching.
by stingraycharles 10y ago
I would assume that a unique pixel is generated by Mailchimp for every recipient to prevent this form of caching.
- jermaustin1 10y agoSimilar, every URL in the email is completely unique to that 1 user's email. That is how you track opens and clicks back to a single user.