Search-MailboxAuditLog -Identity “user@xyz.com” -StartDate 09/09/2020 -operations HardDelete,SoftDelete,MoveToDeletedItems -LogonTypes Owner,Delegate,Admin -ShowDetails | Export-CSV c:\temp\AuditLog.CSV –NoTypeInformation -Encoding UTF8

https://docs.microsoft.com/en-us/powershell/module/exchange/search-mailboxauditlog?view=exchange-ps