I know how to bulk-import a 'Do-Not-Mail' list, but I can't see any way to associate these addresses with a specific list?

Is there any way to do this?

I can't have readers who definitely mustn't receive communications from only one list, automatically unsubscribed or prevented from uploading to all my other lists where they might appear (and that's currently what it looks like Zoho is doing).

The same question applies to how Zoho is treating unsubscribe lists - I need to have these unsubscription requests linked to the list (or e-mail address) of the mail the unsubscription request originated from, NOT automatically added onto a universal 'Do-Not-Mail' list.

Thanks for any help!