Follow these steps to manually unsubscribe a contact:
- Click Contacts >Bulk Update.
- Copy and paste all the email addresses that requested the unsubscribe into the Email tab.
- In Lists, check the All Lists checkbox.
- Under List Properties check the Email Status checkbox to show more options. Keep the first dropdown list on Set to and change the second dropdown list to Unsubscribed.
- Click Update.
Removing a contact from a marketing list in MS Dynamics will automatically unsubscribe that contact in the product.