Message-Id: <v03007807af7d42191e82@[130.237.157.127]>
In-Reply-To: <199704130248.WAA15791@ig.cs.utk.edu>
References: Your message of "Tue, 08 Apr 1997 13:17:31 BST."            
 <v03007805af6fe7b6deb2@[199.81.221.28]>
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Date: Fri, 18 Apr 1997 16:26:21 +0100
To: Keith Moore <moore@cs.utk.edu>
From: Jacob Palme <jpalme@dsv.su.se>
Subject: Re: How to ensure globally unique Message-IDs
Cc: drums@cs.utk.edu, moore@cs.utk.edu

At 22:48 -0400 97-04-12, Keith Moore wrote:
> > Suggested change in draft-ietf-drums-msg-fmt-01, section 3.6.4 last
>paragraph:
> >
> > Change "the domain name of the host on which it was created"
> > to "the domain name whose owner guarantees the uniqueness of
> > the Message-ID".
>
> disagree.  The process creating the message-id, not the owner of the
> domain name, is responsible for uniqueness.

In case the domain creating the message-id is different from the domain
in the author's e-mail address, that would mean that it would be illegal
to construct the message-ID by combining the e-mail address of the author
with a date/time or a sequence number.

This is OK with me, but some mailers might have problems with it,
since the procedure of creating a Message-ID from the e-mail address
of the author is a very common method used by many mailers.

Another problem would occur if the message-id is created in a personal
computer which does not have any domain name. It would then be impossible
for software systems where the client in a personal computer creates
the Message-ID from creating any Message-ID at all!


------------------------------------------------------------------------
Jacob Palme <jpalme@dsv.su.se> (Stockholm University and KTH)
for more info see URL: http://www.dsv.su.se/~jpalme