Have an Azure App Service deployed with VNET integration. Due to network restrictions, the source IP of the App Service is required thus and any NAT-ing is not allowed. The App Service uses public outbound IP addresses, is there any way to use private outbound IP addresses directly from the App Service instead?

Tried deploying an Azure App Service with VNET integration to use private outbound IP addresses. But App Service still uses public outbound IP addresses.

Expected App Service to use private outbound IP addresses.