diff --git a/config.sample.php b/config.sample.php
index 37eb9e3..3ad0e8e 100644
--- a/config.sample.php
+++ b/config.sample.php
@@ -1,3 +1,11 @@
 <?php
 $CONVERT_CMD = "/usr/local/bin/pdftk";
 
+$mailHost = 'mailserver.example.com';                 // Specify main and backup server
+$mailPort = 587;                                    // Set the SMTP port
+$mailSMTPAuth = true;                               // Enable SMTP authentication
+$mailUsername = 'mailuser';                // SMTP username
+$mailPassword = 'mailpasswd';                  // SMTP password
+$mailSMTPSecure = 'tls';                            // Enable encryption, 'ssl' also accepted
+
+