Exchange mail server trusted IP

written by Admin

Posted on 2013-04-03


I need to send mail from an external mail server to an internal Microsoft Exchange Server, but it refuses all mails.


Use this procedure for NETWORK LEVEL trust:

In the Exchange Managemente Console expand:
Local Microsoft Exchange -> Server Configuration
Click on HUB Transport
In Recever Connettor, right click on Default SRV-EXCHANGE
Click on Properties
Click on Network tab
Add the trusted IP in the bottom area.

Run this command for APPLICATION LEVEL trust:
(not in power-shell, but in the Exchange Administration Shell)
Add-IPAllowListEntry -IPAddress <IP>


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