diff --git a/admin_manual/configuration_server/email_configuration.rst b/admin_manual/configuration_server/email_configuration.rst
index ed68a54b5..0b0e2078f 100644
--- a/admin_manual/configuration_server/email_configuration.rst
+++ b/admin_manual/configuration_server/email_configuration.rst
@@ -395,11 +395,20 @@ Enabling debug mode
 -------------------
 
 If you are unable to send email, it might be useful to activate further debug
-messages by enabling the ``mail_smtpdebug`` parameter:
+messages by enabling the ``mail_smtpdebug`` parameter and temporarily setting your NC loglevel to DEBUG:
 
 ::
 
     "mail_smtpdebug" => true,
+    "loglevel" => 0,
+
+Be cautious setting your ``loglevel`` to DEBUG (``0``) since it'll apply to everything occurring on your NC instance, not just email. 
+And don't forget to set it back to a more reasonable level when you're done troubleshooting:
+
+::
+
+    "mail_smtpdebug" => false,
+    "loglevel" => 2,
 
 .. note:: Immediately after pressing the **Send email** button, as described
    before, several **SMTP -> get_lines(): ...** messages appear on the screen.