copy the url from the link in the emails by right-clicking and using “copy link.” then paste the url into the address bar. then goto preferences or leave group.
if you leave a group via e-mail, you’ll be unsubbed right away, but the server is slower to stop the group mail from coming
if you can
go to this link click edit my groups on the top left- locate group (if there’s more than one) under the last column Leave group, check smal box – click save changes