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From: NAGY Andras <nagya@inf.elte.hu>
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Subject: Re: `user-mail-address' for message-ids
Date: 25 Feb 2001 03:05:14 +0100
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In-Reply-To: <vafhf1knv10.fsf@lucy.cs.uni-dortmund.de> (Kai.Grossjohann@CS.Uni-Dortmund.DE's message of "24 Feb 2001 13:08:11 +0100")
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Kai.Grossjohann@CS.Uni-Dortmund.DE (Kai Großjohann) writes:

> > No.  Many MUAs use the user's chosen e-mail address (such as Mutt)
> > in the message-id instead of the system's fqdn.  I say that if the
> > 1st half of the message-id (before the "@") doesn't guarantee
> > uniqueness, then we need to rethink the algorithm for
> > `message-make-message-id'.
> 
> No no no.  Consider people with a gnu.org address, or acm.org, or
> hotmail.com.  People who use the default Linux installation will
> probably be using an account with the user id 100 (or was it 1000?),
> so the user id part that goes into the local part of the message id
> doesn't help, either.

I think he did not mean the numerical user id, but the local part of
the user's email address.  Say, if joe@hotmail.com uses message ids
like random-stuff-based-on-time.joe@hotmail.com, it will be likely
unique.  (If Joe uses only a single MUA at a given time.)


Andras