From: russell@coker.com.au (Russell Coker)
Date: Mon, 1 Aug 2016 11:39:07 +1000
Subject: [refpolicy]  DKIM signatures
Message-ID: <201608011139.07442.russell@coker.com.au>
To: refpolicy@oss.tresys.com
List-Id: refpolicy.oss.tresys.com

This list server adds "[refpolicy]" to the subject and also adds a list footer 
before sending out mail.  To preserve DKIM signatures the sender can manually 
add "[refpolicy]" when starting a new thread.  Also a sender who controls the 
DKIM policy for their domain can add the "l=" flag to sign only the length of 
the original message so that the footer doesn't break the signature.

Is it possible to enable the l= flag on Gmail DKIM signatures?  If not then I 
think it's necessary to either remove the list footer or enable the DKIM 
feature in mailman where it sets the From: field to the list address and allows 
the list sender to apply their own DKIM signature to the outbound mail.

-- 
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