mailinglist_unsubscribe
Cancel a mailing list subscription. The recipient id is given with the id argument.
The on_success argument decides which actions are triggered after unsubscribe is successful; on_error actions are
triggered when unsubscribe fails.
Both action arguments can be repeated. The id is passed to
m_mailinglist:recipient_delete/2; the resource representing the mailing list
is not deleted.
{% button text="Unsubscribe" action={mailinglist_unsubscribe id=q.id on_success={show target="done"} on_error={show target="failed"}} %}