One Click unsubscription

Hi All, 

i am silling to put one click Subscription code which is usally paste in SMTP tab of delivery in PB and use that PB in SMTP tab of delivery kepping rest of logic same ( for web app and typology for one click unsubscription) is it possible , i tested received mail but unsubscribe option to right side of sender email is not visible in received mail. 

Thanks in Advance for Help