MBOX-Line: From janssen at parc.com  Fri Mar  9 09:07:05 2007
To: imap-protocol@u.washington.edu
From: Bill Janssen <janssen@parc.com>
Date: Fri Jun  8 12:34:38 2018
Subject: [Imap-protocol] question on BODY[n.MIME]? 
In-Reply-To: <alpine.WNT.0.83.0703081607250.4212@Tomobiki-Cho.CAC.Washington.EDU>
References: <07Mar8.112542pst."57996"@synergy1.parc.xerox.com>
	<alpine.OSX.0.83.0703081129120.11046@pangtzu.panda.com>
	<07Mar8.141232pst."57996"@synergy1.parc.xerox.com>
	<alpine.WNT.0.83.0703081500000.4212@Tomobiki-Cho.CAC.Washington.EDU>
	<Pine.BSO.4.64.0703081647110.2904@vanye.mho.net>
	<alpine.WNT.0.83.0703081607250.4212@Tomobiki-Cho.CAC.Washington.EDU>
Message-ID: <07Mar9.090708pst."57996"@synergy1.parc.xerox.com>

> So, let me amend my previous statement: your server SHOULD process 
> extension fields and SHOULD send NIL in the BODYSTRUCTURE if the fields 
> are absent in the MIME-IMB header.  It SHOULD NOT omit them; that behavior 
> is for legacy servers which do not implement the extension fields.

I presume this is the case even for fields which are specified as
parenthesized lists, such as "body disposition"; instead of sending an
empty parenthesized list, one should send NIL.

Bill

