Email Hide and Go Seek: How to locate a specific email (down to the folder) in Office 365 using PowerShell

In many organizations, end users receive too much email to manage effectively. Many utilize rules to filter emails into specific buckets to make them easier to find. Over time, these rules compound, and could eventually lead to unintended consequences (i.e. receiving an email but being unable to find it).

When this happens, I’d typically run a quick message trace to establish whether the email was actually delivered or not. Many admins will stop there, advising the end-user to check their rule settings, but using PowerShell, we can find the email(s) for them!

First, let’s get logged into the Office 365 tenant:

$Credential = Get-Credential
$ExchangeSession = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri "https://outlook.office365.com/powershell-liveid" -Credential $credential -Authentication "Basic" -AllowRedirection
Import-PSSession $ExchangeSession

Next, we can determine how many emails match the criteria in case there are more than one (Optional):

search-mailbox -EstimateResultOnly -identity [target user] -searchquery 'from:"[sender emai]" AND subject:"subject"'

Now for the coup de grĂ¢ce, to reconstruct precisely which folder and sub-folder(s) of where the email(s) that match that criteria are in the user’s inbox:

search-mailbox -identity [recipient] -searchquery 'from:"[sender]" AND subject:"[subject] "' -targetmailbox "[your email] " -targetfolder "SearchResults"

In your inbox, you’ll see a folder called ‘SearchResults’. Using this, you can guide the end-user through the folder structure on their own Inbox that they’ll need to traverse to get to the desired email(s).

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