Hi @Lina,
Hopping for David here! Happy to clarify some things here!
To be clear, you should not be sending any content to those who have unsubscribed from your emails, it’s good to regularly suppress those who have unsubscribed so they don’t get any further marketing content from you, only transactional emails. Unfortunately, even Abandon Cart emails are considered promotional emails and not transaction emails, so users who have unsubscribed shouldn’t receive these emails.
However, active profiles who for instance gave their email at a previous checkout without subscribing to your marketing, could trigger an Abandon Cart email. However, you’re right that users who haven’t explicitly opted in might not like receiving a non-transactional email, even if it’s about a product they were close to purchasing. I would consider creating a flow filter for those who are not in your main list to prevent them from receiving this email and potentially unsubscribing because of it.
However, if you choose to go ahead and email these active profiles, there isn’t a way to show/hide dynamic content dependent on whether a user is or isn’t in a list. Your best best would be a condition split asking if they are in your main list and sending two different emails depending on that factor.
-Taylor