- 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
