How can you include the unsubscribe link used in aMember in an email sent outside of amember (ie Sendy,Mailchimp,etc...I'm using Sendy). I notice that the format of the unsubscribe link is simple https://www.[WEBITE/amember/unsubscribe?e=[EMAIL PREFIX]%40[EMAIL SUFFIX]&s=[SOMETHING HERE] I could recreate the link myself, but I'm not sure exactly what the "s=" token is at the end, and if/how to manually find that out. Or is there a more simple way to do this?