Went through the forum for some details.
Understand from @twisted1919 that it is located in: apps/console/components/behaviors/CampaignSenderBehavior.php
Went in and try to comment out: 'List-Unsubscribe' => $listUnsubscribeHeaderValue, but somehow the email header still contains the list-unsubscribe. It creates that additional unsubscribe link in gmail beside the sender name which I want to remove.
The reason why we do not need this unsubscribe is because our client has their own unsubscribe process. Subscribers have to write in to request to unsubscribe and not via any online form.
Understand from @twisted1919 that it is located in: apps/console/components/behaviors/CampaignSenderBehavior.php
Went in and try to comment out: 'List-Unsubscribe' => $listUnsubscribeHeaderValue, but somehow the email header still contains the list-unsubscribe. It creates that additional unsubscribe link in gmail beside the sender name which I want to remove.
The reason why we do not need this unsubscribe is because our client has their own unsubscribe process. Subscribers have to write in to request to unsubscribe and not via any online form.