Unsubscribe headers not present when in Queue mode

Mautic version 4.4.11

Hi, I have created issue here:

< List Unsubscribe headers missing when in Queue mode · Issue #13621 · mautic/mautic · GitHub >, just putting it on the forum to grab more attention. I am looking into this, if someone has additional info that could help me resolve this faster, please post it in thread. Its much appreciated.

Best, M.

It was Mailgun issue at the end (which I fixed).