Keeping your subscriber list clean is very important. It ensures that people don’t subscribe to your list unwillingly. Double Opt-In feature enables you to do exactly that.
You can enable double opt-in for each post individually. To enable Double Opt-in to follow this documentation, when a user subscribes, he or she will get a verification email of confirming the subscription. That way no user can subscribe using a fake or spam email address.
And that will make sure your subscriber list is clean.
Go to weMail→Settings→Double Opt-in.
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Add Email Subject, Email Body and Confirmation Message, your user will get after confirming the subscription. After confirming, your user will stay on the same page with no redirection.
Note: You can customize the email body as you like.
You can redirect your user to any URL of your choosing by selecting Redirect to URL option.
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Or you can redirect your user to a page.
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And you are done with Double-Opt-In!