Delete an email from all mailboxes in O365

 

 

Shamelessly borrowed from:
Spiceworks

 

# Get login credentials 
$UserCredential = Get-Credential 
$Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://ps.compliance.protection.outlook.com/powershell-liveid -Credential $UserCredential -Authentication Basic -AllowRedirection

Import-PSSession $Session -AllowClobber -DisableNameChecking $Host.UI.RawUI.WindowTitle = $UserCredential.UserName + ” (Office 365 Security & Compliance Center)”

# search for the email in all mailboxes
New-ComplianceSearch -Name “Easy-To-Identify-Name” -ExchangeLocation all -ContentMatchQuery ‘sent>=12/01/2017 AND sent<=12/30/2017 AND subject:”announcement” AND from:”username@domain.org”‘
Start-ComplianceSearch -Identity “Easy-To-Identify-Name”

# wait a minute and view the results
Get-ComplianceSearch -Identity “Easy-To-Identify-Name”
Get-ComplianceSearch -Identity “Easy-To-Identify-Name” | Format-List

# delete the messages if the results look right
New-ComplianceSearchAction -SearchName “Easy-To-Identify-Name” -Purge -PurgeType SoftDelete

# check when it is completed
Get-ComplianceSearchAction -Identity “Easy-To-Identify-Name_Purge”

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