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by carsonreinke 3983 days ago
Double opt-in is an industry standard. Someone buying a list of email addresses is not. Some laws are now enforcing the concept such as CASL.

Either way, newsletters/transactional emails can all be marked as SPAM even though the recipient is legitimate. The sender can be negatively affected by a blind reputation system.

"List-Unsubscribe" for sure can be abused, but better then blindly considering every email flagged as SPAM.
1 comments
DanBC 3983 days ago
The industry standard is "confirmed opt in".

Lots of people use the term "double opt it". Some of those people are spammers. If someone cares about sounding credible they should probably use "confirmed opt in" rather than "double opt in".

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carsonreinke 3983 days ago
Clarification, https://blog.mailchimp.com/opt-in-vs-confirmed-opt-in-vs-dou..., http://support2.constantcontact.com/articles/FAQ/1586.

I'm not sure why it is not credible to use the term double opt-in, please explain.

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DanBC 3982 days ago
Mostly it's used by spammers. When you use it there's a hard to shake impression that you don't understand the point about getting confirmation by email from the email address owner, and that you might be using eg checkboxes on a webform as a confirmation.

That mailchimp blog? It's wrong. What they describe as confirmed opt-in is not confirmed opt in, and what they describe as double opt in is in fact just confirmed opt in.

If anyone from mailchimp is reading: please fix this fucking annoying and stupid error.

EDIT: That constantcontact post is correct. Notice how they put "also known as double opt-in" in brackets, and then never use it again but only use confirmed opt-in?

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