@F (John Doe) (jdoe@machine.example)
@T (Mary Smith) (mary@example.net)
@T () (cyrus@example.net)
@T () (foo@example.com)
@T () (otherpeople@novell.example.com)
@T () (foo@baz.example.com)
@S (Saying Hello)
@D ()
@I (<1234@local.machine.example>)
@C (nobody special) (nobody@example.com)
@U ()

From: John Doe <jdoe@machine.example>
To: some people: Mary Smith <mary@example.net>, cyrus@example.net,
  foo@example.com;,
  An empty group:;,
  other people: <otherpeople@novell.example.com>;,
  foo@baz.example.com
Subject: 
   Saying Hello
Date: Fri, 21 Nov 1997 09:55:06 -0600
Message-Id: <1234@local.machine.example>
Cc:    
  nobody special <nobody@example.com>

This is a message just to say hello.
So, "Hello".
