Don't auto-submit the unsubscribe form. Email security scanners like Office 365 Enterprise open links and *execute JS* causing users to automatically unsubscribe the first time they receive an email. Can't think of a sane fix for this :-(

templates/accounts/unsubscribe_submit.html

@@ -12,6 +12,4 @@
         class="btn btn-lg btn-primary"
         value="Unsubscribe">
 </form>
-
-<script>document.getElementById("form").submit();</script>
 {% endblock %}