CmdID / PowerShell / Cmdlets / Remove
Remove-AttachmentFilterEntry
Use the Remove-AttachmentFilterEntry cmdlet to remove an entry from the attachment filter list that's used by the Attachment Filtering agent on Edge Transport servers. Exchange PowerShell reference
From the Exchange PowerShell reference 4 parameters Its page in the reference
Parameters
-IdentityThe Identity parameter specifies the type of attachment that this filter entry removes.-Confirm, -cfThe Confirm switch specifies whether to show or hide the confirmation prompt.-DomainControllerThe DomainController parameter specifies the domain controller that's used by this cmdlet to read data from or write data to Active Directory.-WhatIf, -wiThe WhatIf switch shows what the command does without making any changes.