On Fri, 25 Jul 2025, Stefan Neufeind via mailop wrote:

Does someone know if there are multiple blacklists being used inside
Microsoft?

Given that Microsoft provide least two different mail services
(individual and corporate to simplify) and in spite of their names
these are autonomous (even if they share some parts behind the scenes)
I would be surprised if Microsoft do *not* use multiple blacklists internally.

--
Andrew C. Aitchison                      Kendal, UK
                   [email protected]
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