Update Exchange Malware Definitions

• -open POWERSHELL
• -type: & $env:ExchangeInstallPath\Scripts\Update-MalwareFilteringServer.ps1 -Identity
• -press enter

Hopefully, obviously replace the full with your actual domain name. This could be server.domain.local or server.domain.com or foo.fee.tld. To find this value type:
_GetHostFqdn

Now look at the EVENT VIEWER:

• -server-manager
• -click TOOLS > EVENT-VIEWER
• -click WINDOWS-LOGS > APPLICATION (on the left-hand side).
• -look for EVENT-ID: 6033

This should indicate that the definitions were successfully updated.