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What is the Difference Between Single Opt-In and Double Opt-In?

Single Opt-In is a simple process where users are added to the mailing list as soon as they enter their email address. Double Opt-In includes an additional step where users must confirm their subscription by clicking a link sent to their email. While single opt-in is faster, double opt-in reduces the risk of spam and invalid emails.

Frequently asked queries:

What is a License in Email Marketing?
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