Fixing link references

Author: natekimball-msft

articles/communication-services/quickstarts/email/includes/send-email-net.md

@@ -397,7 +397,7 @@ You can download the sample app demonstrating this action from [GitHub](https://
 
 ### Throw an exception when email sending tier limit is reached
 
-The Email API has throttling with limitations on the number of email messages that you can send. Email sending has limits applied per minute and per hour as mentioned in [API Throttling and Timeouts](https://learn.microsoft.com/azure/communication-services/concepts/service-limits). When you have reached these limits, additional email sends with `SendAsync` calls will receive an error response of “429: Too Many Requests”. By default, the SDK is configured to retry these requests after waiting a certain period of time. We recommend you [set up logging with the Azure SDK](https://learn.microsoft.com/dotnet/azure/sdk/logging) to capture these response codes.
+The Email API has throttling with limitations on the number of email messages that you can send. Email sending has limits applied per minute and per hour as mentioned in [API Throttling and Timeouts](../../../concepts/service-limits.md). When you have reached these limits, additional email sends with `SendAsync` calls will receive an error response of “429: Too Many Requests”. By default, the SDK is configured to retry these requests after waiting a certain period of time. We recommend you [set up logging with the Azure SDK](/dotnet/azure/sdk/logging) to capture these response codes.
 
 Alternatively, you can manually define a custom policy as shown below.