Recover Deleted Emails Exchange Online – Powershell

Connect-ExchangeOnline -Credential $credential
$recoverable_items = Get-RecoverableItems -Identity pippo@pippi.it -SubjectContains "FY17 Accounting" -FilterItemType IPM.Note -FilterStartTime "2/1/2018 12:00:00 AM" -FilterEndTime "2/5/2018 11:59:59 PM"
Restore-RecoverableItems -Identity pippo@pippi.it -FilterItemType IPM.Note -SubjectContains "COGS FY17 Review" -FilterStartTime "3/15/2019 12:00:00 AM" -FilterEndTime "3/25/2019 11:59:59 PM" -MaxParallelSize 2