Received emails do not have unsubscribe link in the header

[m4rky8]

Hello,
Emails received from my Mautic system are not recognized as newsletters and do not have an option in email programs to unsubscribe in the header (or at the top of the email). “list-unsubscribe” is in the header but it isn’t available as a link like it normally would be in a newsletter email (like in this picture).

The unsubscribe link in the email itself works just fine but like I said there isn’t an option in the header and it means that a lot of our emails are landing in spam. I can’t find an option anywhere where it’s disabled and have tried adding a custom header with “list-unsubscribe” but that didn’t work either.

Thanks for any help!

[dandumit]

probably too late but at list an answer

List-Unsubscribe header

Thanks @codes9 I think I understand now. a couple of questions: instead of adding on each email can I add it to the custom email headers in the config so that it appears on every email automatically? [Screenshot 2020-11-09 at 19.39.56] i get everything apart from the http://www.example.com/unsubscribe.html bit. how do I create the URL? this is dynamic right? (it will be different for each user) thank you for you help this is really useful