https://docs.microsoft.com/en-us/powershell/module/exchange/antispam-antimalware/release-quarantinemessage?view=exchange-ps

https://docs.microsoft.com/en-us/powershell/module/exchange/antispam-antimalware/delete-quarantinemessage?view=exchange-ps

Get-QuarantineMessage | where {$_.Released -match “false”} 

Get-QuarantineMessage -RecipientAddress help@domain -Direction outbound | Release-QuarantineMessage -User sn-help@domain