From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <04e901c4a7c9$f5454840$0fee7d50@SOMA>
From: "boyd, rounin" <boyd@insultant.net>
To: "Fans of the OS Plan 9 from Bell Labs" <9fans@cse.psu.edu>
References: <2225359c34cba8b34bed094d47f2553b@plan9.escet.urjc.es>
Subject: Re: [9fans] acme mail "feature"
Date: Fri,  1 Oct 2004 17:18:42 +0200
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> I think so.
> I think the unix mail tool I used would place an
> X-something: header to stopre it's flags (read,replied,etc.).

it does and it's a dreadful idea because it modifies the original message.

any such tagging should be OOB.