? smtp-541942.patch
Index: smtp.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/smtp/smtp.module,v
retrieving revision 1.17.2.8
diff -u -p -r1.17.2.8 smtp.module
--- smtp.module	23 Sep 2008 22:03:01 -0000	1.17.2.8
+++ smtp.module	11 Sep 2009 19:04:04 -0000
@@ -243,8 +243,9 @@ function drupal_mail_wrapper($message) {
   $headers  = $message['headers'];
 
   // Include the PHPMailer class (which includes the SMTP class).
-  require_once(drupal_get_path('module', 'smtp') .'/phpmailer/class.phpmailer.php');
-
+  if (!class_exists('PHPMailer')) {
+    require_once(drupal_get_path('module', 'smtp') .'/phpmailer/class.phpmailer.php');
+  }
   // Create a new PHPMailer object.
   $mail = new PHPMailer();