List-Unsubscribe header not in double opt-in confirmation #2224
Description
Version:
- listmonk: v4.1.0
- OS: NixOS
Description of the bug and steps to reproduce:
It seems like the List-Unsubscribe feature is broken, or at least not properly configured by default (even when the option is toggled).
I'm using listmonk v4.1 and the emails sent by the campaign do not include the List-Unsubscribe header at all, and I have tried both with and without the option being toggled.
Screenshots:
I would upload a screenshot, but it would be hard to parse. The point is: with the option to include the list-unsubscribe header toggled on, and looking at the received email headers, the message does not have the list-unsubscribe header anywhere.
Any help would be very welcome.