diff --git a/app/models/comment.rb b/app/models/comment.rb
index 012f97794..6cd3f0796 100644
--- a/app/models/comment.rb
+++ b/app/models/comment.rb
@@ -26,6 +26,7 @@ class Comment < ApplicationRecord
   scope(:in_past_week, -> { where("confirmed_at > ?", 7.days.ago) })
 
   delegate :email, to: :user
+  delegate :comment_authority_with_fallback, to: :application
 
   counter_culture :application,
                   column_name: proc { |comment| comment.visible? ? "visible_comments_count" : nil },
diff --git a/app/views/_tailwind/comments/_delivery_status.html.erb b/app/views/_tailwind/comments/_delivery_status.html.erb
index bdc2dbfbf..5354e4dfb 100644
--- a/app/views/_tailwind/comments/_delivery_status.html.erb
+++ b/app/views/_tailwind/comments/_delivery_status.html.erb
@@ -9,7 +9,7 @@
     <% component.with_summary { "Delivered to the planning authority" } %>
     <%# TODO: Use more sensible time zone %>
     This comment was successfully delivered to the email server of
-    <%= comment.application.comment_authority_with_fallback %>
+    <%= comment.comment_authority_with_fallback %>
     on
     <%= comment.last_delivered_at.utc.to_fs(:long) %> UTC
   <% end %>
@@ -17,7 +17,7 @@
   <%= render Tailwind::DisclosureComponent.new(size: "xl") do |component| %>
     <% component.with_summary { "There was a problem delivering this to the planning authority" } %>
     The comment was hard bounced by the email server of
-    <%= comment.application.comment_authority_with_fallback %>
+    <%= comment.comment_authority_with_fallback %>
     on
     <%= comment.last_delivered_at.utc.to_fs(:long) %> UTC
     Please follow up by
diff --git a/app/views/_tailwind/comments/preview.html.erb b/app/views/_tailwind/comments/preview.html.erb
index 799b36eed..da1a3ec7f 100644
--- a/app/views/_tailwind/comments/preview.html.erb
+++ b/app/views/_tailwind/comments/preview.html.erb
@@ -27,7 +27,7 @@
 
     <div class="mt-4">
       <%= render Tailwind::ButtonComponent.new(tag: :button, size: "2xl", type: :primary) do %>
-        Publish (and send to <%= @comment.application.comment_authority_with_fallback %>)
+        Publish (and send to <%= @comment.comment_authority_with_fallback %>)
       <% end %>
     </div>
   </div>
@@ -37,7 +37,7 @@
   <h2 class="text-3xl font-bold text-navy">Email preview</h2>
 
   <p class="mt-8 text-2xl text-navy">
-    Your comment and details will also automatically be sent to <strong><%= @comment.application.comment_authority_with_fallback %></strong>.
+    Your comment and details will also automatically be sent to <strong><%= @comment.comment_authority_with_fallback %></strong>.
     They may consider your submission when they decide whether to approve this application.
   </p>
   <p class="mt-4 text-2xl text-navy">
diff --git a/app/views/comments/_comment.html.haml b/app/views/comments/_comment.html.haml
index ac4ce6edb..ed6a8620a 100644
--- a/app/views/comments/_comment.html.haml
+++ b/app/views/comments/_comment.html.haml
@@ -29,12 +29,12 @@
           - elsif comment.last_delivered_successfully
             This comment was successfully delivered to the
             email server of
-            = comment.application.comment_authority_with_fallback
+            = comment.comment_authority_with_fallback
             at
             = comment.last_delivered_at
           - else
             The comment was hard bounced by the email server of
-            = comment.application.comment_authority_with_fallback
+            = comment.comment_authority_with_fallback
             at
             = comment.last_delivered_at
             Please follow up by
diff --git a/app/views/comments/_confirmed.html.haml b/app/views/comments/_confirmed.html.haml
index 823cdf58a..5afab3017 100755
--- a/app/views/comments/_confirmed.html.haml
+++ b/app/views/comments/_confirmed.html.haml
@@ -1,7 +1,7 @@
 .notice-comment-confirmed
   %h1.page-title Thanks, your comment has been sent!
   %p
-    Your comment has been sent to #{comment.application.comment_authority_with_fallback}
+    Your comment has been sent to #{comment.comment_authority_with_fallback}
     and #{link_to "posted below", comment_path(comment)}.
   = link_to "Share your comment on Facebook",
     "https://www.facebook.com/sharer/sharer.php?u=#{comment_url(comment)}&t=",