on this page https://docs.erpnext.com/docs/v13/user/manual/en/CRM/newsletter in Section 3.4. we can set the following:
Send unsubscribe message in email
when setting this to 1 the reciipient will get an e-mail with the option unsubscribe from that “doctype communication”.
I have figured out how that mostly works and have created some documentation on the matter:
Now what I can not find is a list where all the e-mail-contacts are in that have unsubribed. Does anyone know where to find that list?