Hello @JillV669 ,
Typically when it comes to handling an email's recommended-for-removal bounce, you can unsubscribe and delete them from within the email's reporting. If you made a separate list for the sake of mass unsubscribing them, I'd recommend:
Exporting this created bounce list from your account,
Making sure you have advanced permissions turned on in your account settings,
Then uploading the bounce list you exported as an unsubscribe file.
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