This section is mandatory to ensure both training delivery & notification emails can be successfully delivered to your end-users. The following instructions are for Google Workspace (Gmail).
You can ignore this article if you deliver training notifications via your own email servers, or via your own corporate Learning Management System (LMS).

Whitelist OutThink Email Servers
The following IP Addresses must be whitelisted to bypass spam filtering within your organization. OutThink will send training notifications from these servers.
- If your OutThink tenant is hosted in the EU data center
69.169.231.204
69.169.231.205 - If your OutThink tenant is hosted in the US data center
76.223.144.180
76.223.144.181 - If your OutThink tenant is hosted in the CA data center
54.240.81.125
54.240.81.126
Your hosting region is determined by your OutThink tenant configuration, not your company’s physical location. If you are unsure which data center your tenant is hosted in, please contact OutThink Support or your Customer Success Manager.
If your organisation employs an endpoint security device or other gateway which processes all incoming email, the IP Addresses of OutThink’s mail servers listed in this article may not be detected. In this case, it is recommended to whitelist the sender email addresses instead:
notifications@cyber.outthink.io
notifications@cyber.outthink.app
For Google Workspace customers, whitelisting can be achieved as follows. Refer to the Google documentation for further details.
- Login to the Google Admin Console via https://admin.google.com/.
- Navigate to Apps > Google Workspace > Gmail in the side menu.
- Select the Spam, Phishing and Malware options.
- In the Email allowlist, enter all IP Addresses listed at the start of this article, separated by a comma.
- Click Save at the bottom of the screen.
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