we need that <hr> in notification emails, I think

app/views/email/notification.html.erb

@@ -5,6 +5,7 @@
   <div class='footer'>
     %{respond_instructions}
   </div>
+  <hr>
   <h4 class='.previous-discussion'><%= t "user_notifications.previous_discussion" %></h4>
 
   <% context_posts.each do |p| %>

config/locales/server.en.yml

@@ -937,7 +937,7 @@ en:
   unsubscribe_link: "To unsubscribe from these emails, visit your [user preferences](%{user_preferences_url})."
 
   user_notifications:
-    previous_discussion: "Previous discussion"
+    previous_discussion: "Previous Replies"
     unsubscribe:
       title: "Unsubscribe"
       description: "Not interested in getting these emails? No problem! Click below to unsubscribe instantly:"