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From: lindberg@cs.chalmers.se (Gunnar Lindberg)
Newsgroups: comp.mail.misc
Subject: Re: rewriting to's & cc's
Message-ID: <3142@fnatte.cs.chalmers.se>
Date: 21 Jul 89 09:43:05 GMT
References: <4291@viscous.sco.COM> <1005@utkcs2.cs.utk.edu>
Sender: news@cs.chalmers.se
Organization: Chalmers University of Technology, Sweden
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>><4291@viscous.sco.COM>, stewarte@sco.COM (Stewart Evans):
>>As I understand it, it is proper for transfer agents
>>to rewrite...
>>For example:  tom at host1 sends a message to host2!dick,
>>and cc's harry (who is also at host1).  How should that
>>cc: line look when host2!dick receives it?  

><1005@utkcs2.cs.utk.edu>, moore@CYGNUSX1.CS.UTK.EDU (Keith Moore):
>Exactly as tom typed it.

Now, I'm not sure of what you mean by "rewriting", but at least the
local mail delivery agent *must* add itself to "To:" and "Cc:" fields
that do not have any host/domain on it. Otherwise it will be impossible
for somebody else to reply.

If host1!tom sends

    To: host2!dick
    Cc: harry

then host2!dick *must* receive this with

    From: host1!tom
    To: host2!dick
    Cc: host1!harry

which is *not* as Tom typed it(!), but makes it possible for Dick to
reply both to Tom and Harry instead of trying to reach "Local Harry".

	Gunnar Lindberg