Cyrus deliver command

[Dahnke, Eric (Company IT)]

How can a person set the Subject and X- headers in an email using
deliver. Suppose I need to have an email as formatted below delivered to
a users mailbox. Can I just cat a file containing this text and pipe it
to deliver? Thx

From: "Outlook Sync" <>
Subject: Hidden synchronization message
X-Priority: 3
X-Library: Bynari Insight Server 4.2
X-Bynari-Folder-Class: IPF.Appointment

This message contains data necessary to synchronize this folder with
Outlook.
Please do not delete.
--------------------------------------------------------

NOTICE: If received in error, please destroy and notify sender.  Sender does not waive confidentiality or privilege, and use is prohibited.