diff -u b/swiftmailer.module b/swiftmailer.module
--- b/swiftmailer.module
+++ b/swiftmailer.module
@@ -43,7 +43,7 @@
 
   //$message['params']['format'] = SWIFTMAILER_FORMAT_HTML;
 
-  $text[] = '<h3>' . t('Dear !user,', array('!user' => $user->getAccountName())) . '</h3>';
+  $text[] = '<h3>' . t('Dear !user,', array('!user' => $user->getDisplayName())) . '</h3>';
   $text[] = '<p>' . t('This e-mail has been sent from !site by the Swift Mailer module. The module has been successfully configured.', array('!site' => variable_get('site_name', 'a Drupal site'))) . '</p>';
   $text[] = t('Kind regards') . '<br /><br />';
   $text[] = t('The Swift Mailer module');