[Mailman-Users] Custom Headers?

[David Cake]

	I'd like to just add a completely new custom header (in this 
case, an X-Comment) to a mailing list. Is there any easy way to do 
this with mailman? If not, does anyone have suggestions for how to do 
this using procmail, sendmail configuration, or similar?
	Cheers
		David


PS apologies for posting the same question to this list and the LO 
list, I just realised it would be more appropriate here.