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From: hta@isolde.Berkeley.EDU (Harald Tveit Alvestrand)
Newsgroups: comp.protocols.tcp-ip,news.admin,comp.mail.misc
Subject: Re: What Is Difference Between Internet And X.400 Style Names?
Message-ID: <1991Feb26.150141.6430@ugle.unit.no>
Date: 26 Feb 91 15:01:41 GMT
References: <39557@cup.portal.com>
Sender: news@ugle.unit.no
Reply-To: harald.alvestrand@elab-runit.sintef.no
Organization: ELAB-RUNIT, SINTEF, Norway
Lines: 22

In article <39557@cup.portal.com>, Will@cup.portal.com (Will E Estes) writes:
                                      I had thought that X.400 names
|> were of the form /THIS=,/THAT=,/ANDWHATEVER=.

You were right. BUT............
1) There exists an RFC called RFC-987 (see also RFC-1148) that specifies how
   to map X.400 addresses to RFC format addresses and the other way round,
   using a big, ugly table called "the RFC-987 mapping table".
   See, for example, the two formats of my address below; they are the SAME
   mailbox.
2) The format /THIS=... is ONE of the possible ways to write an X.400 address
   (you might think that this is nitpicking until you encounter another one :-)
3) X.500 can store anything. We use it today to store (among other things)
   X.400 mailbox names and RFC-822 mailbox names.

Confused? You are not alone!


                   Harald Tveit Alvestrand
Harald.Alvestrand@elab-runit.sintef.no
C=no;PRMD=uninett;O=sintef;OU=elab-runit;S=alvestrand;G=harald
+47 7 59 70 94


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