Single Opt-In vs. Double Opt-In: The Case for SOI

The Case for Single Opt-InWe gather here to settle once and for all the debate as to whether single opt-in or double opt-in is the better signup process. Before we begin, let’s be clear on what these two terms mean:

  • Single opt-in (SOI) is a subscription process where a new email address is added to your mailing list without requiring the owner of that email address to confirm definitively that they knowingly and willingly opted in
  • Double opt-in (DOI), also known as confirmed opt-in (COI), is a subscription process where a new email address is only added to your mailing address after the email address owner clicks a confirmation link in a subscription activation or opt-in confirmation request email that’s sent to them after they opt in via a form or checkbox

With that out of the way, let’s now hear the case for single opt-in…

>> Read the full post on the Litmus Blog

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