Troubleshoot the allow list settings for Microsoft Defender for Office 365 to allow
Phishing Simulation Assessment to successfully send phishing simulation emails to the
employees in your organization.
Configure the IP allow list for Microsoft Defender for Office 365.
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On the Trend Vision One console, locate and copy the Phishing
Simulation Assessment sending IP address by going to .
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In the Microsoft Defender for Office 365
portal, go to .
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Go to .
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Under Always allow messages from the following IP addresses
or address range, add the Phishing Simulation Assessment
sending IP address, and then click Save.