diff --git a/config-example.php b/config-example.php
index 7a6d4da..d77881f 100644
--- a/config-example.php
+++ b/config-example.php
@@ -1,8 +1,21 @@
 <?php
-# copy this file, fill, and save as 'config.php'
-define( 'IMAPBOT_PATH_PHAB',     '/path/to/phabricator' );
-define( 'IMAPBOT_PATH_SPOOLER',  '/path/to/php-imap-spooler/class-IMAPSpooler.php' );
-define( 'IMAPBOT_IMAP_MAILBOX',  '{HOST:PORT/ssl}INBOX' ); // HOST example: foo.it,   PORT example: 993
+# remember to copy this file, fill, and save as 'config.php'
+
+# path to your Phabricator installation
+define( 'IMAPBOT_PATH_PHAB', '/path/to/phabricator' );
+
+# your mailbox connection URL
+# see the full syntax in https://www.php.net/manual/en/function.imap-open.php
+define( 'IMAPBOT_IMAP_MAILBOX', '{HOST:PORT/ssl}INBOX' ); // HOST example: foo.it,   PORT example: 993
+
+# your mailbox username
 define( 'IMAPBOT_IMAP_USERNAME', 'foo@bar.it' );
+
+# your mailbox password
 define( 'IMAPBOT_IMAP_PASSWORD', 'imap password password' );
-define( 'IMAPBOT_CYCLE_SLEEP',   10 );
+
+# how much seconds to wait before checking new e-mails
+define( 'IMAPBOT_CYCLE_SLEEP', 10 );
+
+# path to the IMAPSpooler class (maybe you can leave this as-is)
+define( 'IMAPBOT_PATH_SPOOLER',  __DIR__ . '/../php-imap-spooler/class-IMAPSpooler.php' );