In eternal-september.support message <jlcg17$7cd$
1...@dont-email.me>, Mon,
2 Apr 2012 10:19:09, VanguardLH <V...@nguard.LH> posted:
Once more, you are emitting from the wrong end of your alimentary canal.
>In the turnpike newsgroup, I noticed some advice from Stocky about what
>to use for a MID header. He states it is "courteous to make your the
>right part of your M-ID recognisably yours" giving as a basis the
>ability for others to recognize your posts. You'll find the MID header
>rarely identifies a particular sender unless they have gone to the
>trouble to register their own domain and use that in their MID header.
That sentence is sloppy and untrue. I wrote "recognisably yours",
nothing about owning domains. I'm discussing courtesy, not technical
requirements such as uniqueness, here (the word may be in Webster).
And, in context, that does not need to be "recognisable by all and
sundry", just recognisable by someone who has already seen some of his
M-IDs. At least one PITA uses fully-recognisable M-IDs - that enables me
to kill, unseen, not only all messages from him but also most messages
in threads descending from a message from him. That's useful. You, as
a reader, may lack that capability; it depends on the software you have
chosen.
By always using its own M-ID, E-S would defend all of its posters from
that treatment.
Then there is no need for the domain to be one that one owns. Mine is
owned by Demon, but leased by me. They have granted me full rights over
the use of that domain name, for so long as that pleases them. For
uniqueness, it is control, not ownership, that matters. Hugh has a
similar account. But we have not registered our domains; they are sub-
domains of one registered (presumbly) by Demon.
>Everyone posting through Eternal-September is getting the same right-id
>token (to the right of the ampersand character) with a random left-id
>token, and that doesn't uniquely identify the poster at all.
If that is true, it is only very recently true. The first article in
this thread has a Demon M-ID in Turnpike style, and its Path has E-S at
both ends.
But I hope ES-generated left parts are not random; that does not
guarantee uniqueness. They seem to be 12-character base-64 strings
Inspection shows that the probability of them being fully-random is
negligible. If they are mostly random, duplicates will be rare.
>RFC 5322: Internet Message Format
>
http://www.rfc-editor.org/rfc/rfc5322.txt
>Section 3.6.4: Identification Fields
>
>You'll see what the RFC says to use, and that's a domain as the right-id
>token (domain) portion of the MID header. Well, if you use a domain
>then it better be one that you own since uniqueness of the left-id token
>for the domain specified by the right-id token. When you were using
>
demon.co.uk to submit your messages, you were submitting to their server
>and obviously they have permission to use their own domain.
But Demon do not have the right to use subdomains that they have leased
out, unless that lease id terminated.
>You should not be using someone else's domain because you cannot
>guarantee that the left-id tokens your client generates will not
>conflict with those the owner of that domain might use.
You are not invariably wrong.
> When you used
>
demon.co.uk then their client's use of that domain was valid. Now that
>you're not using them anymore means your posts should be using their
>domain (or a subdomain of their domain).
One can post (as I do) through Mozilla, E-S, AIOE without losing ones
rights over one's Demon sub-domain; and that includes the right to base
M-IDs on it.