Comment by drdeca

How about just having, near the unsubscribe link in the email, a link that says "click here to ignore up to one unsubscribe link press within two minutes of clicking this link", so that the automated process that clicked the unsubscribe link by mistake will also click that link.

The page in question could also have a "actually, I do want to unsubscribe, I just clicked the wrong link by accident" button as well, in case a human reader is confused.

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Or, one link that says "unsubscribe immediately" and another that says "unsubscribe only after confirmation", and the first one unsubscribes immediately, unless they also click the second link immediately before or after, while the second link only unsubscribes them if they click a confirm button on the page?

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Or, maybe the unsubscribe link could have a confirmation button, but would also have some javascript to confirm the unsubscribe after a few moments of the page being fully loaded (the button being used if they have javascript disabled, for example)