Internal smtp IP address show in email header Exchange server 2016

Question

Hi,

Even after running the following command, the email header still shows the smtp ip address and server name "see attached pic":

1. Remove headers
   Get-SendConnector | Where-Object {$_.Enabled -eq $true} | Remove-ADPermission –User 'Nt Authority\Anonymous Logon' –ExtendedRights 'ms-Exch-Send-Headers-Routing'

2. Restart IIS and Microsoft Exchange Transport Services

   iireset
   Restart-Service MSExchangeTransport

Any solution, thanks in advance.

Answer 1

Thanks a lot for your replay @KyleXu-MSFT , I understood. But why still show my exchange inside ip address. As I state earlier that I have already execute the command, but no hop.

Answer 2

If your Exchange Server sends mail directly to the internet, then you can't hide the internal IP Address.
If you want to hide it, then it needs to be smarthosted outbound through another server like an Edge Role server or other SMTP gateway

Answer 3

@Ebrahim

Here is an example for you:

Before removing:

After removing:

The last hop which communicates with the Internet will be recorded, so, if you want to protect your Exchange server IP. It is suggested to use an Edge server to deliver email to the Internet.

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Answer 4

Thanks for your replays @Andy David - MVP & @KyleXu-MSFT , but our Exchange server is not sending email directly! We have SMTP server in DMZ after exchange server.