Path: utzoo!attcan!uunet!decwrl!sdd.hp.com!ucsd!orion.oac.uci.edu!ucivax!gateway
From: khiem@hpinddm.cup.hp.COM (Khiem Ho)
Newsgroups: comp.protocols.iso.x400
Subject: Re:  Question about routing
Message-ID: <9007271458.AA22219@hpinddm.HP.COM>
Date: 27 Jul 90 15:14:20 GMT
Lines: 23
Approved: usenet@ICS.UCI.EDU
Full-Name: Khiem Ho
In-Reply-To: <9007270148.AA03257@cpd.com>; from "Ron Wheeler" at Jul 26, 90 6:48 pm
X-Mailer: ELM [version 2.2 PL10]

> Richard,
>
> If X.400 works as advertised, AND you have not turned on the disclose
> other recipients flag, then MTA2 will re-envelope the message and send
> to MTA3 ONLY the addressees on MTA3.  Likewise the envelope that goes to
> MTA4 will only have the addressees of MTA4.  This will prevent the duplicate
> delivery you have suggested.
>
> Ron

Actually this is not necessarily true. The Disoclosure of Other
Recipients is a per message flag, and does NOT necessarily result in
removing of other recipient names from the envelope (at least as defined
by the stds and implemented in a number of implementations). All this
flag does is to prevent, in theory, the MTA from giving the other names to
the UA; but this feature, as far as I know, is not really well-understood
or useful, and caused more confusion than anything else.
It was an attempt to provide Bcc feature by the MTA.

As stated in some previous message, setting the Responsibility flag as
appropriate for each recipient will do the job.

Khiem