CmdID / PowerShell / Cmdlets / Enable
Enable-HostedOutboundSpamFilterRule
Use the Enable-HostedOutboundSpamFilterRule cmdlet to enable outbound spam filter rules in your cloud-based organization. Exchange PowerShell reference
From the Exchange PowerShell reference 3 parameters Its page in the reference
Parameters
-IdentityThe Identity parameter specifies the outbound spam filter rule that you want to enable.-Confirm, -cfThe Confirm switch specifies whether to show or hide the confirmation prompt.-WhatIf, -wiThe WhatIf switch shows what the command does without making any changes.