Hidden setting in SMS for SMTP 5 (Advanced Attributes)

In Symantec Mail Security for SMTP 5 there is a hidden setting page which allow you to change inbound and outbound SMTP greeting, SPAM notification URL, Email archive x-header name etc.

To acces the hidden setting page in SMS for SMTP Control Center simply do the following:
Click on Settings and then click on the white area just outside to right of the “alert settings” box and then press shift + a (press and hold down shift while pressing a).

Now you get access to the advanced attributes.