Update connect-exchange-server-on-premises.md

power-platform/admin/connect-exchange-server-on-premises.md

@@ -34,7 +34,7 @@ For more information about authentication, go to:
 
 4. **Secured connection**. The connection between customer engagement apps and Exchange must be encrypted via [TLS/SSL](/windows/win32/secauthn/cipher-suites-in-schannel) and current [cipher suites](server-cipher-tls-requirements.md). 
 
-5. **Exchange Web Services (EWS)**. Connections to EWS must be allowed through the firewall. Often a reverse proxy is used for the exterior-facing connection. If your EWS endpoint is not exterior-facing, review [IP addresses required](online-requirements.md#ip-addresses-required). Be sure to whitelist IP addresses on your on-premises firewall, based on your Dynamics 365 online environment region to allow connections to your Exchange server that is on-premises.
+5. **Exchange Web Services (EWS)**. Connections to EWS must be allowed through the firewall. Often a reverse proxy is used for the exterior-facing connection. If your EWS endpoint is not exterior-facing, review [IP addresses required](online-requirements.md#ip-addresses-required). Be sure to add IP addresses to the allow list on your on-premises firewall, based on your Dynamics 365 online environment region to allow connections to your Exchange server that is on-premises.
 
 
 > [!TIP]