To determine which leads have unsubscribed or bounced to you emails and newsletters create a smart list and set the following conditions:

To determine leads who have unsubscribed choose 'Lead Property' Subscribed -> is -> False:

To determine the leads who have had a bounced email choose 'Email' -> Have -> Bounced:

Once created because smart lists are continual any future leads who unsubscribe or bounce will be added to the list.

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