New-SettingOverride -Name "DisableP2FromRegexMatchDisclaimer" -Component "Transport" -Section "NonCompliantSenderSettings" -Parameters @("AddDisclaimerforRegexMatch=false") -Reason "Disabled For Troubleshooting"
Get-ExchangeDiagnosticInfo -Process Microsoft.Exchange.Directory.TopologyService -Component VariantConfiguration -Argument Refresh
Restart-Service -Name MSExchangeTransport

#New-TransportRule -HeaderContainsMessageHeader "X-MS-Exchange-P2FromRegexMatch" -HeaderContainsWords @("True") -RejectMessageReasonText "Message not accepted due to a non-RFC compliant P2 FROM header" -Name "NonCompliantP2FromDetectionRule" -SenderAddressLocation "Header"