Remove All Emails from a specific sender

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 -Credential $cred -Authentication Basic –AllowRedirection

Import-PSSession $s

  1. Type in your ada credentials with username of <username>
  2. Type in your domain admin credentials with username of domain\<username>


  1. Run this command in Powershell



Search-Mailbox -identity “User Mailbox” -SearchQuery “” -deletecontent