@c This is part of the GNU Mailutils manual.
@c Copyright (C) 1999-2004, 2007, 2010-2012, 2014-2017 Free Software
@c Foundation, Inc.
@c See file mailutils.texi for copying conditions.
@comment *******************************************************************

@smallexample
@code{/* Prefix @emph{mh_} is reserved */}
@code{#include <mailutils/mh.h>}

@end smallexample

Mail Handler mailbox format.