diff --git a/src/applications/differential/editor/DifferentialTransactionEditor.php b/src/applications/differential/editor/DifferentialTransactionEditor.php
index a456b634c1..9be0e959f3 100644
--- a/src/applications/differential/editor/DifferentialTransactionEditor.php
+++ b/src/applications/differential/editor/DifferentialTransactionEditor.php
@@ -1137,7 +1137,10 @@ final class DifferentialTransactionEditor
     PhabricatorLiskDAO $object,
     array $xactions) {
 
-    $body = parent::buildMailBody($object, $xactions);
+    $body = new PhabricatorMetaMTAMailBody();
+    $body->setViewer($this->requireActor());
+
+    $this->addHeadersAndCommentsToMailBody($body, $xactions);
 
     $type_inline = DifferentialTransaction::TYPE_INLINE;
 
@@ -1148,6 +1151,12 @@ final class DifferentialTransactionEditor
       }
     }
 
+    if ($inlines) {
+      $body->addTextSection(
+        pht('INLINE COMMENTS'),
+        $this->renderInlineCommentsForMail($object, $inlines));
+    }
+
     $changed_uri = $this->getChangedPriorToCommitURI();
     if ($changed_uri) {
       $body->addLinkSection(
@@ -1155,11 +1164,7 @@ final class DifferentialTransactionEditor
         $changed_uri);
     }
 
-    if ($inlines) {
-      $body->addTextSection(
-        pht('INLINE COMMENTS'),
-        $this->renderInlineCommentsForMail($object, $inlines));
-    }
+    $this->addCustomFieldsToMailBody($body, $object, $xactions);
 
     $body->addLinkSection(
       pht('REVISION DETAIL'),
diff --git a/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php b/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
index 27051395e9..ee1b9f4e7c 100644
--- a/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
+++ b/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
@@ -2191,6 +2191,21 @@ abstract class PhabricatorApplicationTransactionEditor
     PhabricatorLiskDAO $object,
     array $xactions) {
 
+    $body = new PhabricatorMetaMTAMailBody();
+    $body->setViewer($this->requireActor());
+
+    $this->addHeadersAndCommentsToMailBody($body, $xactions);
+    $this->addCustomFieldsToMailBody($body, $object, $xactions);
+    return $body;
+  }
+
+  /**
+   * @task mail
+   */
+  protected function addHeadersAndCommentsToMailBody(
+    PhabricatorMetaMTAMailBody $body,
+    array $xactions) {
+
     $headers = array();
     $comments = array();
 
@@ -2209,14 +2224,20 @@ abstract class PhabricatorApplicationTransactionEditor
         $comments[] = $comment;
       }
     }
-
-    $body = new PhabricatorMetaMTAMailBody();
-    $body->setViewer($this->requireActor());
     $body->addRawSection(implode("\n", $headers));
 
     foreach ($comments as $comment) {
       $body->addRemarkupSection($comment);
     }
+  }
+
+  /**
+   * @task mail
+   */
+  protected function addCustomFieldsToMailBody(
+    PhabricatorMetaMTAMailBody $body,
+    PhabricatorLiskDAO $object,
+    array $xactions) {
 
     if ($object instanceof PhabricatorCustomFieldInterface) {
       $field_list = PhabricatorCustomField::getObjectFields(
@@ -2232,11 +2253,10 @@ abstract class PhabricatorApplicationTransactionEditor
           $xactions);
       }
     }
-
-    return $body;
   }
 
 
+
 /* -(  Publishing Feed Stories  )-------------------------------------------- */