A user sends a post-wannabe which
... emerges as a mail message from Xmailer
...... XMailer attributes a Message-ID: <1111111111.22222@xmailer.ods.org>
... bears a To: mail2news@dizum.com,mail2news@frogadmin.com
... bears a Newsgroups: alt.anonymous.messages
Two copies of the mail message,
... bearing same Message-ID: <1111111111.22222@xmailer.ods.org>
... are now racing towards Frog and Dizum gateways.
Let us imagine it goes much faster to Dizum....
Dizum mail2news gets the mail message and manages to post it
... to aam
... with same Message-ID: <1111111111.22222@xmailer.ods.org>
The XMailer-Dizum post is now percolating through the NewsServers
... with same Message-ID: <1111111111.22222@xmailer.ods.org>
... and finds its way to Frog's NewsServer where it is accepted and stored
...... (Frog sucks aam from 3 NewsServers)
... still with Message-ID: <1111111111.22222@xmailer.ods.org>
Frog mail2news finally gets the mail message and tries to post it
... to aam
... with same Message-ID: <1111111111.22222@xmailer.ods.org>
But it finds that it is already there on Frog's own NewsServer
... posting at Frog's fails
... no NewsServer ever will see
....... this Message-ID: <1111111111.22222@xmailer.ods.org>
....... with Frog's mail2news as entry point
A user sends a post-wannabe which
... emerges as a mail message from Xmailer
...... XMailer attributes a Message-ID: <1111111111.22222@xmailer.ods.org>
... bears a To: mail2news@dizum.com,mail2news@frogadmin.com
... bears a Newsgroups: alt.test.test
Two copies of the mail message,
... bearing same Message-ID: <1111111111.22222@xmailer.ods.org>
... are now racing towards Frog and Dizum gateways.
Dizum mail2news gets the mail message and manages to post it
... to alt.test.test
... with same Message-ID: <1111111111.22222@xmailer.ods.org>
The XMailer-Dizum post is now percolating through
the NewsServers
... with same Message-ID: <1111111111.22222@xmailer.ods.org>
... and never finds its way to Frog's NewsServer
...... (Frog does not suck alt.test.test from anywhere)
Frog mail2news gets the mail message and manages to post it
... (there is no chance that it would already be on the NewsServer)
... to alt.test.test
... with same Message-ID: <1111111111.22222@xmailer.ods.org>
The XMailer-Frog post is now percolating through the NewsServers
... with same Message-ID: <1111111111.22222@xmailer.ods.org>
Two copies of the post message,
... Xmailer-Dizum and XMailer-Frog
... bearing same Message-ID: <1111111111.22222@xmailer.ods.org>
... are now percolating and racing towards all the NewsServers in the universe.
For each NewsServer, there will be only one winner,
... the second copy of post Message-ID: <1111111111.22222@xmailer.ods.org>
will be rejected
... but there are thousands of different races
... and depending on the NewsServer you are using, you will see Xmailer-Dizum or Xmailer-Frog
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