Mailbox_Filters

   A common goal is to filter incoming messages, perhaps sending an
   automatic response, forwarding the messages to another account,
   or automatically rejecting or discarding some based upon material
   in the messages' headers or bodies. One way to do this is via the
   DELIVER facility.

   If your messages are delivered to the native message store (VMS
   MAIL mailbox) or to a PMDF popstore or PMDF MessageStore account,
   your system administrators may have chosen to enable another
   option: PMDF message filtering. If your system administrators
   have chosen to enable it, PMDF provides a web-based interface
   through which you can specify a vacation notice, specify a
   forwarding address, and construct and manage your own message
   screening rules. These are collectively known as mailbox
   filters.
 

Additional information available:

Mailbox_Filter_File             Web_Interface