Supressing duplicate email

[Mike Schmitz <mschmitz@coinet.com>]

Does anyone have a procmail recipe to supress duplicate email? (Useful when
subscribed to more than one Debian list).

-- 
  Mike Schmitz     mschmitz@bend-or.com    http://www.bend-or.com/~mschmitz   
  Don't blame me - I voted libertarian!    http://www.lp.org/                 
  Use Debian Linux - the free Gnu/Linux    http://www.debian.org/    
				  -----------        
	 "If encryption is outlawed, only outlaws will have encryption" 


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