I know Campaign Monitor has a subscriber confirmation in which the recipient can confirm their own subscription to an email campaign/newsletter.
Is there any option for creating a process in which the client or owner of a list can approve or deny new subscribers when someone requests to be added to a list?
That's not something that is built in, but you could of course review recent subscribers by sorting by date, and unsubscribing people if you needed to. It's not something we have had any other requests for though.
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