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Has anyone else noticed the ‘Changes to Google Privacy Policy and Terms of Service’ from Google all have the same Message-ID header, <>? I’ve asked around no one has anything different so far. says it is the meaning that the sender of the message wishes to convey (i.e., whether this is the same message or a different message) that determines whether or not the “Message-ID:” field changes so the To: header being distinct in each email needn’t push Google into making each Message-ID unique too. Just seems a little strange, that’s all.

There are other minor differences in the body of the emails, e.g. 7-bit ASCII single quotes or sexier ones, “We believe that this stuff”, “Have questions? We have answers.” versus “Got questions? We’ve got answers.”, and “We reckoned/figured our users”. Perhaps that’s English versus American English tailoring.
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