How to hide internal information for your Exchange Server from headers

  • Login to your Exchange Server
  • Open Exchange Management Shell as Administrator
  • Execute below command:
Get-SendConnector -Identity "NAME OF YOUR SEND CONNECTOR" | Remove-ADPermission –User 'Nt Authority\Anonymous Logon' –ExtendedRights 'ms-Exch-Send-Headers-Routing'

Restart your IIS and Transport Services of Exchange server

Hide x-originating-ip
  • Login to your Exchange Admin Center
  • Mail Flow
  • Create New Rule
  • Configure below details
  • Select Header
  • Save

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