Delete emails from specific sender in one users mailbox

1.  Connect to Exchange On-line

1. From the PowerShell console on an Exchange 2010 server:

$Cred = Get-Credential 

$s = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://ps.outlook.com/powershell -Credential $cred -Authentication Basic –AllowRedirection 

Import-PSSession $s 

 

1. Run this command in Powershell

 

Search-Mailbox -identity “User Mailbox” -SearchQuery “From:user@domain.com” -deletecontent