Question about message id

Cameron Simpson cs at cskk.id.au
Mon Apr 8 21:27:38 UTC 2024


On 07Apr2024 18:23, Anton Sharonov <anton.sharonov at gmail.com> wrote:
>On Sun, Apr 07, 2024 at 09:23:07AM -0600, Charles Cazabon via Mutt-users wrote:
>> There's a good reason for that; it help to ensure uniqueness, which 
>> prevents
>> problems with threading.  By limiting itself to only digits, Yandex's IDs are
>> much more likely to collide.
>
>Hm, not sure about that... Given that string is long enough,
>random string which consists only out of digits can perhaps
>compete with (much shorter) random string of alpha-numeric
>characters - in terms of uniqueness probability?

It doesn't matter. The yandex people only need to ensure the uniqueness 
of the stuff left of the "@" (because they're the owners of the stuff on 
the right), and can do whatever is reliably unique for them.

Regardless, just using digits only means the string needs to be a bit 
longer.

Mutt uses more characters because it lets you make the message-id a 
shorter piece of text.


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