Hi @EleanorW32 ,
Great phrasing to this question, it sounds like you recognize the sensitivity of this and want to respect everyone's choice. You're not alone wanting some more feedback! It's generally frowned upon to contact your unsubscribed contacts, even with good intentions. If you haven't already, I'd recommend turning on unsubscribe comments to capture this feedback in real time during the unsubscribe process. This can point to something as simple as sending too frequently, or a change in the subscribers interests.
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