For background, I am thankful for the detailed page distinguishing implied consent vs explicit consent, but my question is in the practice of obtaining explicit consent for emails added to Constant Contact.
I am told having people sign up through online forms is the gold standard, but is there any issue with inputting emails manually after receiving explicit, written permission, say with a physical sign-up form? Do emails sent distinguish between the two at all? Is email input source part of the equation for assessing validity of an email from the client's side?
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