Scenario
You want to find out how the Exclaimer Cloud Signature Update Agent connects to the internet to download signatures. You have a restrictive firewall policy and need to whitelist the URLs used by the Agent.
Resolution
The Exclaimer Cloud Signature Update Agent uses the following URLs - please add these to your firewall allow/exceptions list to ensure that the Agent can connect successfully:
| URL | Purpose |
|---|---|
| login.microsoftonline.com | Used to authenticate to Azure. |
| secure.aadcdn.microsoftonline-p.com | Used to authenticate to Azure. |
|
<region code>.outlooksignatures.exclaimer.net (Where <region code> is replaced with the region code for the subscription, see: How to check your region code) |
Used to download signature data. |
| outlookclient.exclaimer.net | Used to determine which data center to connect to. |
WARNING! Make sure you are aware of your region code before you add the exceptions. You need to enter the 'region code' to populate the URL correctly:
Region code
AU Australia
CA Canada
DE Germany
EU Europe
UAE UAE
UK United Kingdom
US United States
Region code
AU Australia
CA Canada
DE Germany
EU Europe
UAE UAE
UK United Kingdom
US United States
NOTE: All connections are on port 443.