How to Block onmicrosoft.com in Outlook classic on Windows 11?

How can you permanently block 'onmicrosoft.com' emails for Outlook classic on Windows 11 (personal - MS365)?

I am tired of and disgusted at the amount of phishing/spam/malware emails that come in via onmicrosoft.com on behalf of some other entity.

All of the emails are of this category. And supposedly they are from Costco, Home Depot, Lowes, United Health, Sam's Club, cloud storage, protection (Norton), etc.

I have accounts at these big box stores and regularly receive marketing emails directly from these companies - AND - these stores actually know my account name and use it in the email. Whereas the emails from onmicrosoft.com do not. These us no name (and some no email address) to tell me my account is in trouble of expiring, out of space, payment past due, or infected - total BS.

I understand that new domains get created daily and that much of these are difficult to prove validity initially.  However, since Microsoft is in a tough situation to know validity or not, give us a way to block, turn off, make a rule, to block emails from onmicrosoft.com so that my Junk mail is not saturated with these bogus emails. 

Rules will not work. You cannot create one that blocks and/or automatically deletes emails from onmicrosoft.com. 

Report does not work either as the ones reported on keep showing up day after day. If Microsoft's position is that it produces superior products, then it should provide a way for the user to turn off features not needed or desired. 'onmicrosoft.com' is one of the worst product enhancements to come along.

Hoping for a solution.