bounces and the right thing to do

What is The Right Thing To Do with messages from mailer-daemons
telling me that a message I sent to a mailing list did not get
delivered to some recipient? Obviously, they don't do me a damn bit of 
good. Do I send them to /dev/null, or is there a better use for them?

-- 
Michael D. Harnois, Redeemer Lutheran Church, Washburn, IA 
mharnois(_at_)sbt(_dot_)net                      
aa0bt(_at_)aa0bt(_dot_)ampr(_dot_)org 
Earth has its boundaries, but human stupidity is limitless.
  -- Gustave Flaubert