diff --git a/app/views/map_activity_mailer/daily_summary.html.erb b/app/views/map_activity_mailer/daily_summary.html.erb
index 99fd53f7..d28d00a5 100644
--- a/app/views/map_activity_mailer/daily_summary.html.erb
+++ b/app/views/map_activity_mailer/daily_summary.html.erb
@@ -15,22 +15,22 @@
     <%= link_to @map.name, map_url(@map) %>
   </p>
   <div>
-    <% if @summary_data[:stats][:messages_sent] > 0 %>
+    <% if @summary_data[:stats][:messages_sent] %>
       <p style="margin:6px 0;color:#a354cd;"><%= pluralize(@summary_data[:stats][:messages_sent], 'message') %></p>
     <% end %>
-    <% if @summary_data[:stats][:topics_added] > 0 %>
+    <% if @summary_data[:stats][:topics_added] %>
       <p style="margin:6px 0;color:#4FC059;"><%= pluralize(@summary_data[:stats][:topics_added], 'topic') %> added</p>
     <% end %>
-    <% if @summary_data[:stats][:synapses_added] > 0 %>
+    <% if @summary_data[:stats][:synapses_added] %>
       <p style="margin:6px 0;color:#4FC059;"><%= pluralize(@summary_data[:stats][:synapses_added], 'synapse') %> added</p>
     <% end %>
-    <% if @summary_data[:stats][:topics_moved] > 0 %>
+    <% if @summary_data[:stats][:topics_moved] %>
       <p style="margin:6px 0;color:#00BCD4;"><%= pluralize(@summary_data[:stats][:topics_moved], 'topic') %> moved</p>
     <% end %>
-    <% if @summary_data[:stats][:topics_removed] > 0 %>
+    <% if @summary_data[:stats][:topics_removed] %>
       <p style="margin:6px 0;color:#c04f4f;"><%= pluralize(@summary_data[:stats][:topics_removed], 'topic') %> removed</p>
     <% end %>
-    <% if @summary_data[:stats][:synapses_removed] > 0 %>
+    <% if @summary_data[:stats][:synapses_removed] %>
       <p style="margin:6px 0;color:#c04f4f;"><%= pluralize(@summary_data[:stats][:synapses_removed], 'synapse') %> removed</p>
     <% end %>
   </div>
@@ -61,7 +61,7 @@
     </div>
   <% end %>
 
-  
+
   <% if @summary_data[:topics_removed] || @summary_data[:synapses_removed] %>
     <div style="background:rgba(192, 79, 79, 0.2); padding:8px;">
       <% if @summary_data[:topics_removed] %>
diff --git a/config/initializers/delayed_job.rb b/config/initializers/delayed_job.rb
index d3132394..c4725b19 100644
--- a/config/initializers/delayed_job.rb
+++ b/config/initializers/delayed_job.rb
@@ -1,9 +1,14 @@
-Delayed::Worker.class_eval do
-
-    def handle_failed_job_with_notification(job, error)
-      handle_failed_job_without_notification(job, error)
-      ExceptionNotifier.notify_exception(error)
-    end
-    alias_method_chain :handle_failed_job, :notification
+# frozen_string_literal: true
 
+module ExceptionNotifierInDelayedJob
+  def handle_failed_job(job, error)
+    super
+    ExceptionNotfier.notify_exception(error)
+  end
 end
+
+Delayed::Worker.class_eval do
+  prepend ExceptionNotifierInDelayedJob
+end
+
+Delayed::Worker.logger = Logger.new(File.join(Rails.root, 'log', 'delayed_job.log'))
diff --git a/spec/views/map_activity_mailer/daily_summary.html.erb_spec.rb b/spec/views/map_activity_mailer/daily_summary.html.erb_spec.rb
new file mode 100644
index 00000000..f581a1d2
--- /dev/null
+++ b/spec/views/map_activity_mailer/daily_summary.html.erb_spec.rb
@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe 'map_activity_mailer/daily_summary.html.erb' do
+  it 'displays messages sent' do
+    assign(:user, create(:user))
+    assign(:map, create(:map))
+    assign(:summary_data, stats: {
+             messages_sent: 5
+           })
+
+    render
+
+    expect(rendered).to match(/5 messages/)
+  end
+end