diff --git a/windows/security/threat-protection/windows-defender-antivirus/microsoft-defender-atp-mac.md b/windows/security/threat-protection/windows-defender-antivirus/microsoft-defender-atp-mac.md
index 0510dc864b..912811fbfb 100644
--- a/windows/security/threat-protection/windows-defender-antivirus/microsoft-defender-atp-mac.md
+++ b/windows/security/threat-protection/windows-defender-antivirus/microsoft-defender-atp-mac.md
@@ -49,11 +49,20 @@ If you have any feedback that you would like to share, submit it by opening Micr
 
 After you've enabled the service, you may need to configure your network or firewall to allow outbound connections between it and your endpoints.
 
-The following table lists the services and their associated URLs that your network must be able to connect to. You should ensure that there are no firewall or network filtering rules that would deny access to these URLs, or you may need to create an *allow* rule specifically for them:
+The following table lists the services and their associated URLs that your network must be able to connect to. You should ensure that there are no firewall or network filtering rules that would deny access to these URLs, or you may need to create an *allow* rule specifically for them.
 
-| Service        | Description                          | URL                                                                  |
-| -------------- | ------------------------------------ | -------------------------------------------------------------------- |
-| ATP            | Advanced threat protection service   | [https://x.cp.wd.microsoft.com](https://x.cp.wd.microsoft.com), [https://cdn.x.cp.wd.microsoft.com](https://cdn.x.cp.wd.microsoft.com) |
+| Service location                         | DNS record              |
+| ---------------------------------------- | ----------------------- |
+| Common URLs for all locations            |  x.cp.wd.microsoft.com <br/> cdn.x.cp.wd.microsoft.com <br/> eu-cdn.x.cp.wd.microsoft.com <br/> wu-cdn.x.cp.wd.microsoft.com <br/> *.blob.core.windows.net <br/> officecdn-microsoft-com.akamaized.net |
+| European Union                           | europe.x.cp.wd.microsoft.com |
+| United Kingdon                           | unitedkingdom.x.cp.wd.microsoft.com |
+| United States                            | unitedstates.x.cp.wd.microsoft.com |
+
+Microsoft Defender ATP can discover a proxy server by using the following discovery methods:
+- Web Proxy Auto-discovery Protocol (WPAD)
+- Manual static proxy configuration
+
+If a proxy or firewall is blocking anonymous traffic, make sure that anonymous traffic is permitted in the previously listed URLs.
 
 To test that a connection is not blocked, open [https://x.cp.wd.microsoft.com/api/report](https://x.cp.wd.microsoft.com/api/report) and [https://cdn.x.cp.wd.microsoft.com/ping]([https://cdn.x.cp.wd.microsoft.com/ping) in a browser.