diff --git a/mod/questionnaire/locallib.php b/mod/questionnaire/locallib.php
index 5fd088c..71001a5 100644
--- a/mod/questionnaire/locallib.php
+++ b/mod/questionnaire/locallib.php
@@ -1694,8 +1694,8 @@ class questionnaire {
 
         } else {
             $mail->IsSMTP();                               // use SMTP directly
-            if ($CFG->debug > 7) {
-                echo "<pre>\n";
+            if (!empty($CFG->debugsmtp)) {
+                echo '<pre>' . "\n";
                 $mail->SMTPDebug = true;
             }
             $mail->Host = "$CFG->smtphosts";               // specify main and backup servers
@@ -2890,4 +2890,4 @@ function questionnaire_response_key_cmp($l, $r) {
         $output = $errorstart.$message.$errorend;
         echo $output;
     }
-?>
\ No newline at end of file
+?>