Mail flow policy - block email address using powershell and list of addresses from a csv file

[Marvin Oco]

in creating Mail flow policy - block email address - can this be done using powershell and list of addresses will be from a csv file?

[#2]

Sure, use New-TransportRule: https://docs.microsoft.com/en-us/powershell/module/exchange/policy-and-compliance/new-transportrule?...