debian_distro-tracker/distro_tracker/mail/templates/control/email-unsubscribe-confirmation.txt

  You asked to be unsubscribed from the "mailing list" associated to
  the {{ DISTRO_TRACKER_VENDOR_NAME }} source package called {{ package }}.
  http://{{ DISTRO_TRACKER_SITE_DOMAIN }}{% url 'dtracker-package-page' package %}