How to remove all email addresses from archive?

Hi,

I'm writing a resource file for MHonArc to remove all email addresses
from archive. In most of places, email addresses can be removeable.
But in the message files (msg*.html), it has R13-encoded email
address :-(.

How can I remove (or modify) it?

-- 
-- Name: SATOH Fumiyasu  -- Home: http://www.sfo.jp (in Japanese only)
-- Mail: fumiya @net-thrust.com, @samba.gr.jp, @namazu.org or ...

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