Hi,
on Microsoft 365 documentations site I found an article where you can read:
"[...] all outbound messages from Microsoft 365 datacenter servers that
are determined to be spam are sent through the high-risk delivery pool."
https://learn.microsoft.com/en-us/microsoft-365/security/office-365-security/high-risk-delivery-pool-for-outbound-messages
So, when Microsoft 365 identify an outbound message as spam don't block
it but was sent via "the high-risk delivery pool".
I think it is not a correct behavior, if you can identify a message as
unwanted why do you have to send it anyway? It does not seem to me a
positive contribution to the cause of a better internet, but only a
discharge of responsibility on the receiving server.
In any case, some one know what are the IP address in the "high-risk
delivery pool" of Microsft 365?
Thanks
--
Alessio Cecchi
Postmaster @http://www.qboxmail.it
https://www.linkedin.com/in/alessice
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