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Help PhishTrainer: setup

Allow PhishTrainer in Microsoft 365 Defender

For administrators PhishTrainer Updated on 18 August 2026

Allow PhishTrainer phishing simulation campaigns in Microsoft 365 Defender, so that they actually reach your users.
On this page
  1. Purpose
  2. Procedure
  3. Values to allow
  4. Check the configuration

Purpose

For the phishing simulation emails sent by PhishTrainer to actually reach your users, they must not be blocked or filtered by Microsoft 365 mail protection. The configuration is done entirely on the Office 365 side, by declaring Bexxo's sending domains and sending IP addresses as a trusted third-party phishing simulation (Advanced delivery).

Prerequisite: a Microsoft 365 administrator account with permissions on the security portal (Security Administrator role or equivalent).

Procedure

  1. Sign in to security.microsoft.com/advanceddelivery with your administrator account.
  2. In the left menu, click “Policies & rules”.
  3. Then click “Threat policies”.
Microsoft 365 Defender: Policies & rules menu then Threat policies
Microsoft 365 Defender: “Policies & rules” then “Threat policies”.
  1. Scroll down and click “Advanced delivery”, in the Rules section.
  2. Once in Advanced delivery, click the “Phishing simulation” tab.
Rules section: access to Advanced delivery
“Rules” section: access to “Advanced delivery”.
Advanced delivery: Phishing simulation tab
“Advanced delivery”: “Phishing simulation” tab.
  1. Click the “Add” button.
  2. A pane slides in from the right of your screen. Enter all the domains and sending IP addresses used by your PhishTrainer campaigns, listed below.

Values to allow

Campaigns are sent through Infomaniak. Enter all the domains in the Domain field (Sending domain) and all the ranges in the Sending IP field. Click a value to copy it, or click “Copy all”.

Sending domain
Sending IP

Microsoft requires at least one domain and at least one IP address to save the rule.

Add Third Party Phishing Simulations pane: Domain and Sending IP fields
“Add Third Party Phishing Simulations” pane: “Domain” and “Sending IP” fields.

Check the configuration

  1. Once you have added the domains and the IP addresses and closed the pane, each domain and each IP address is displayed as a separate rule in the Phishing simulation window. The configuration is complete.

Procedure created from the Microsoft documentation: Configure the advanced delivery policy for third-party phishing simulations.

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