CmdID / PowerShell / Cmdlets / Remove
Remove-DkimSigningConfig
Use the Remove-DkimSigningConfig cmdlet to remove the DomainKeys Identified Mail (DKIM) signing policy settings for domains in a cloud-based organization. Exchange PowerShell reference
From the Exchange PowerShell reference 4 parameters Its page in the reference
Parameters
-IdentityThe Identity parameter specifies the DKIM signing policy that you want to remove.-Confirm, -cfThe Confirm switch specifies whether to show or hide the confirmation prompt.-ForceThe Force switch hides warning or confirmation messages.-WhatIf, -wiThe WhatIf switch shows what the command does without making any changes.