* webmail installation does not prevent changes in user's email address.
* See SquirrelMail bug tracker #847107 for more details about it.
*
- * Add $hide_squirrelmail_header as a candidate for config_local.php
+ * Add hide_squirrelmail_header as a candidate for config_local.php
+ * (must be defined as a constant: define('hide_squirrelmail_header', 1);
* to allow completely hiding SquirrelMail participation in message
* processing; This is dangerous, especially if users can modify their
* account information, as it makes mapping a sent message back to the