This is how you deal with unsubscribes.
Give them options.
Let your customers choose which emails they want to receive and which they don’t.
Let them choose to pause emails for a certain time period.
Let them choose to unsubscribe from all with just 1 button.
Quickest ways into the spam folder?
1. Don’t have an obvious unsubscribe in your email
2. Make people login to unsubscribe https://sleeknote.com/blog/why-people-unsubscribe-from-emails