diff --git a/src/applications/metamta/view/PhabricatorMetaMTAMailBody.php b/src/applications/metamta/view/PhabricatorMetaMTAMailBody.php
--- a/src/applications/metamta/view/PhabricatorMetaMTAMailBody.php
+++ b/src/applications/metamta/view/PhabricatorMetaMTAMailBody.php
@@ -140,6 +140,25 @@
   }
 
   /**
+   * Adds a horizontal rule to the mail page.
+   *
+   * @return this
+   */
+  public function addDividerSection() {
+    $line = '____________________________________';
+    $divider =
+      phutil_tag(
+        'div',
+        array(
+          'style' => 'color: #8C98B8;',
+        ),
+        '______________________________');
+    $this->htmlSections[] = phutil_tag('div', array(), $divider);
+    $this->sections[] = $line;
+    return $this;
+  }
+
+  /**
    * Add a Herald section with a rule management URI and a transcript URI.
    *
    * @param string URI to rule transcripts.
diff --git a/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php b/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
--- a/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
+++ b/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
@@ -2211,6 +2211,7 @@
           $xactions);
       }
     }
+    $body->addDividerSection();
 
     return $body;
   }