11% –> Double opt-in (have to check an unchecked box and respond to confirmation email)
26% –> Confirmed opt-in (have to check an unchecked box, plus they receive a welcome email allowing them to immediately opt out)
22% –> Single opt-in (have to check an unchecked box)
22% –> Negative opt-in (have to uncheck a pre-checked box not to be opted in)
20% –> Opt out (are automatically opted in and have to opt out to get off your list)
Are you surprised by the results? Share your comments below.
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Which channel does email have the most synergies with?