Google Message Security for Google Apps Administration Guide - Manual (Page 399)

Customizing Notifications 399
Dear <-address->,
Your value-added email services are now DISCONTINUED. Any
suspicious messages that may have been quarantined in your private
Message Center have been forwarded to your email account.
<-extra->
Please be advised that your request to discontinue these services
may result in junk mail or virus-infected messages arriving to your
inbox without the benefit of filtering.
<-isp-> Support
<-from->
The “Date:”, “From:”, “To:” & “Subject:” lines must be at the top of a custom
notification, since they are used as the actual message headers for the message
when sent out. If they are not included, then the custom notification messages will
bounce.
The available tokens for the Suspend User notification are:
<-date->
The timestamp indicating the date and time the notification was sent.
<-from->
The return address, referenced as your organization's Support Contact in the
“Support Address” field (see organization record).
<-address->
The specific user's email address.
<-notice_address->