Over on Deliverability.com Krzysztof posts about discussions going on over on the URIBL list about using “confirmed opt-in” to describe a subscription process versus using “double opt-in” to describe the same subscription process. I do not even need to read the list to know what is being said. This is a disagreement that has been going on since the first usage of “double opt-in” over 10 years ago...

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