Hi Dan, yes - that's what the "durable unsubscribe" does. It remembers that the email address was unsubscribed before it was deleted, so if it's reimported it will remain unsubscribed.
Hi Beth - I understand that. What I'm asking is will Marketo check against the behind-the-scenes durable unsubscribe list and physically mark the "unsubscribed" field as TRUE within that lead record?
Yes, that's correct. The newly reimported lead will have unsubscribed = true.
Great; thanks for the guidance!