Merge pull request #173780 from nbarrasson/patch-2

Update api-management-using-with-vnet.md

Author: PRMerger15

articles/api-management/api-management-using-with-vnet.md

@@ -157,7 +157,7 @@ When an API Management service instance is hosted in a VNET, the ports in the fo
 | * / 1433                     | Outbound           | TCP                | VIRTUAL_NETWORK / SQL                 | **Access to Azure SQL endpoints**                           | External & Internal  |
 | * / 5671, 5672, 443          | Outbound           | TCP                | VIRTUAL_NETWORK / Event Hub            | Dependency for [Log to Event Hub policy](api-management-howto-log-event-hubs.md) and monitoring agent | External & Internal  |
 | * / 445                      | Outbound           | TCP                | VIRTUAL_NETWORK / Storage             | Dependency on Azure File Share for [GIT](api-management-configuration-repository-git.md)                      | External & Internal  |
-| * / 443, 12000                     | Outbound           | TCP                | VIRTUAL_NETWORK / AzureCloud            | Health and Monitoring Extension         | External & Internal  |
+| * / 443, 12000                     | Outbound           | TCP                | VIRTUAL_NETWORK / AzureCloud            | Health and Monitoring Extension & Dependency on Event Grid (if events notification activated)        | External & Internal  |
 | * / 1886, 443                     | Outbound           | TCP                | VIRTUAL_NETWORK / AzureMonitor         | Publish [Diagnostics Logs and Metrics](api-management-howto-use-azure-monitor.md), [Resource Health](../service-health/resource-health-overview.md), and [Application Insights](api-management-howto-app-insights.md)                   | External & Internal  |
 | * / 25, 587, 25028                       | Outbound           | TCP                | VIRTUAL_NETWORK / INTERNET            | Connect to SMTP Relay for sending e-mails                    | External & Internal  |
 | * / 6381 - 6383              | Inbound & Outbound | TCP                | VIRTUAL_NETWORK / VIRTUAL_NETWORK     | Access Redis Service for [Cache](api-management-caching-policies.md) policies between machines         | External & Internal  |