Log when and why an email was not sent in email_logs

app/assets/javascripts/admin/routes/admin_email_skipped_route.js

@@ -0,0 +1,17 @@
+/**
+  Handles routes related to viewing email logs of emails that were NOT sent.
+
+  @class AdminEmailSkippedRoute
+  @extends Discourse.Route
+  @namespace Discourse
+  @module Discourse
+**/
+Discourse.AdminEmailSkippedRoute = Discourse.Route.extend({
+  model: function() {
+    return Discourse.EmailLog.findAll('skipped');
+  },
+
+  renderTemplate: function() {
+    this.render('admin/templates/email_skipped', {into: 'adminEmail'});
+  }
+});

app/assets/javascripts/admin/routes/admin_routes.js

@@ -17,6 +17,7 @@ Discourse.Route.buildRoutes(function() {
 
     this.resource('adminEmail', { path: '/email'}, function() {
       this.route('logs');
+      this.route('skipped');
       this.route('previewDigest', { path: '/preview-digest' });
     });