Can I adjust the output from "biff"?

[John Whitehead]

Is there a way that I can make it so my "biff" announcements are briefer?

That is to say, when I get mail it interrupts me and says:

	New mail for jfw at neuro has arrived:
	----
	Date: Fri, 28 Sep 90 11:21:08 EDT
	From: jfw at neuro.duke.edu (John F. Whitehead)
	To: jfw
	
	Fri Sep 28 11:21:07 EDT 1990

	----

Can I make it so all it says is "New mail for jfw at neuro has arrived"?

I am running SunOS 4.1, which I guess is a Berkeley variation.  Thanks.

    John Whitehead	               Internet:  jfw at neuro.duke.edu
    Department of Neurobiology                    jfw at well.sf.ca.us
    Duke University Medical Center     Bitnet:    white002 at dukemc           
    Durham, North Carolina