diff --git a/mha/server.py b/mha/server.py
index 4177e3d..154d48e 100644
--- a/mha/server.py
+++ b/mha/server.py
@@ -198,7 +198,7 @@ def index():
                             'DKIM-Signature', 'ARC-Authentication-Results']
         return render_template(
             'index.html', data=r, delayed=delayed, summary=summary,
-            n=n, chart=chart, security_headers=security_headers)
+            n=n, chart=chart, security_headers=security_headers, mail_data=mail_data)
     else:
         return render_template('index.html')
 
diff --git a/mha/templates/index.html b/mha/templates/index.html
index 2faa54f..5181f22 100644
--- a/mha/templates/index.html
+++ b/mha/templates/index.html
@@ -177,6 +177,14 @@ <h3 class="panel-title">Other headers</h3>
                 </table>
             </div>
         </div>
+        <div class="panel panel-default" style="margin-top: 10px;">
+            <div class="panel-heading">
+                <h3 class="panel-title">Submitted headers</h3>
+            </div>
+            <pre>
+{{ mail_data }}
+            </pre>
+        </div>
         {% else %}
         <div class="row">
             <div class="col-md-12">