Hi,
Using Outlook/Microsoft 365 with Exchange 2016 OnPrem.
I wasn't sure if I should post here or in the Exchange forum, but it feels like an Outlook issue more than anything.
I am seeing a specific machine continually request the users' Exchange password. Another machine with the same...
We are seeing an email bomb attack enabled through mass automated sign up to mailing lists. There are literally thousands of emails from thousands of list servers, almost all identical and similar to the following:
These are genuine lists but have nothing to do with users signing up. I would...
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