diff --git a/src/pretix/plugins/sendmail/forms.py b/src/pretix/plugins/sendmail/forms.py
index a5cf87320..a896c3d79 100644
--- a/src/pretix/plugins/sendmail/forms.py
+++ b/src/pretix/plugins/sendmail/forms.py
@@ -384,8 +384,8 @@ class RuleForm(FormPlaceholderMixin, I18nModelForm):
             ]
         )
 
-        self._set_field_placeholders('subject', ['event', 'order', 'position_or_address'])
-        self._set_field_placeholders('template', ['event', 'order', 'position_or_address'], rich=True)
+        self._set_field_placeholders('subject', ['event', 'order', 'event_or_subevent', 'position_or_address'])
+        self._set_field_placeholders('template', ['event', 'order', 'event_or_subevent', 'position_or_address'], rich=True)
 
         choices = [
             (Order.STATUS_PAID, _('Paid (or canceled with paid fee)')),
diff --git a/src/pretix/plugins/sendmail/views.py b/src/pretix/plugins/sendmail/views.py
index a78edbb9c..2f5540f23 100644
--- a/src/pretix/plugins/sendmail/views.py
+++ b/src/pretix/plugins/sendmail/views.py
@@ -657,7 +657,7 @@ class UpdateRule(EventPermissionRequiredMixin, UpdateView):
 
         for lang in self.request.event.settings.locales:
             with language(lang, self.request.event.settings.region):
-                placeholders = get_sample_context(self.request.event, ['event', 'order', 'position_or_address'])
+                placeholders = get_sample_context(self.request.event, ['event', 'order', 'event_or_subevent', 'position_or_address'])
                 subject = bleach.clean(self.object.subject.localize(lang), tags=set())
                 preview_subject = prefix_subject(self.request.event, format_map(subject, placeholders), highlight=True)
                 template = self.object.template.localize(lang)