If you submit a message trace with a custom date via the Exchange Online admin center, you’ll see this message: From there, it can take anywhere from a few minutes to a few hours for your search results to be ready. Or… You can pop over to PowerShell and, after connecting to Exchange Online, run your trace like this: Get-MessageTrace -StartDate 3/22/2017 -EndDate 4/3/2017 -RecipientAddress email@address.com […]