not signing email to e.g. majordomo

["Travis H." <travis@xxxxxxxxxxxxxxxxx>]

I used the excellent mutt+gpg howto to get me started,
but I found that replying to majordomo (among other things) with
signed email is not a good idea.  Is there any way to automatically
_not_ sign based on the recipient?
-- 
"Cryptography is nothing more than a mathematical framework for
discussing various paranoid delusions." -- Don Alvarez
<URL:http://www.subspacefield.org/~travis/> -><-

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