better error messages for sendmail failure
diff --git a/system/libraries/Email.php b/system/libraries/Email.php
index 89d0976..99a5ea3 100644
--- a/system/libraries/Email.php
+++ b/system/libraries/Email.php
@@ -1549,8 +1549,9 @@
 			$status = $status >> 8 & 0xFF;
 	    }
 	
-		if ($status == 0)
+		if ($status != 0)
 		{
+			$this->_set_error_message('email_exit_status', $status);
 			$this->_set_error_message('email_no_socket');
 			return FALSE;
 		}