Office 365 - getting READ count through powershell

I'm trying to get a "READ" count on a mailbox in exchange online/Office365, is there a way to do this through powershell?

I'm able to do this on "SENT" items and RECEIVED"  using the below, but can't find a way to get the number or "Read" emails.

Get-MessageTrace -StartDate (Get-Date).Adddays(-7) -EndDate (Get-Date) -SenderAddress | Group-Object -Property SenderAddress | Select name,count

Thanks experts, any expertise is appreciated.
Ron ShortsAsked:
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Vasil Michev (MVP)Commented:
You cannot do this via "pure" PowerShell. You can use some EWS-based script, such as the one here:
Alternatively, you can get some stats on the number of "read" items from the O365 reports. Or you can use the Search-Mailbox cmdlet with the -LogLevel switch to generate a report of all items in a mailbox, including their read status.

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