Ultrix 4.1, local mail is from daemon

[Rusty Wright]

Local mail on my DECstation always has daemon in the From line,
although the From: line shows the correct sender.  Here is a sample:

	From daemon Thu Jan  3 20:59:36 1991
	Received: by belch.Berkeley.EDU (5.57/1.41)
		id AA04254; Thu, 3 Jan 91 20:59:35 -0800
	Date: Thu, 3 Jan 91 20:59:35 -0800
	From: rusty (Rusty Wright)
	Message-Id: <9101040459.AA04254 at belch.Berkeley.EDU>
	To: rusty

I suspect that its from the Ou1 that's in the sendmail.cf file that we
use here at UC Berkeley.  But if I remember correctly, that's been
there forever; why don't other sendmail's put daemon in the From line?
Is there something other than Ou1 that I should have in my sendmail.cf
file?  Or should I delete it?