include file into email's body

To: mutt maillist <mutt-users@xxxxxxxx>
Subject: include file into email's body
From: Lucas J. González <lucas@xxxxxxxxx>
Date: Fri, 25 Jan 2008 02:31:33 +0100
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Hi,

Is it possible to include a file as '-i' command line option does, but
once within mutt browser?

-- 
     Lucas J. González