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Additional Configuration - ESET

Safelisting Secure Schools on ESET Cloud Office Security

This guide provides step-by-step instructions for configuring ESET Cloud Office Security (ECOS) to allow simulated phishing emails and training notifications from the Secure Schools platform to reach your users' inboxes,  (Sources)

If you encounter any issues with these steps, please contact your usual ESET support contact. 

Overview

ESET Cloud Office Security (ECOS) uses policy-based protection to scan emails for spam, phishing, and malware. To ensure your phishing simulations and training notifications are delivered correctly — and not blocked or flagged as phishing — you must add Secure Schools' sending IP addresses and domains to your Approved lists within the ECOS console.

Prerequisites

Ensure you have the information from our Domains and IP Addresses KB article, including the Sending IP Address, Infrastructure IP Address, and Sending domains. You will also need administrator access to the ESET Cloud Office Security console.

Configuration Steps

1. Create or Modify a Policy

Safelisting in ECOS is managed via policies assigned to your users or tenants.

  1. Log on to your ESET Cloud Office Security console.

  2. Navigate to Policies in the left-hand menu.

  3. Click New policy (or select an existing custom policy to edit).

  4. Enter a descriptive Name (e.g., "Secure Schools Phishing Safelist") and click Next.

  5. Under the Targets section, click Select to assign the policy to the relevant Tenants, Groups, or Users you wish to include in the simulation.

2. Configure Anti-Spam Approved Lists

The Approved IP list is the most reliable safelisting method: ECOS bypasses content scanning entirely for emails originating from approved IP addresses, preventing them from being flagged as spam or phishing.

  1. Click Settings within your policy.

  2. Expand Exchange Online Anti-Spam (or Gmail Anti-Spam if using Google Workspace).

  3. Locate the Approved IP list and click Edit.

  4. Click Add and enter the Secure Schools IP addresses:

    • 185.250.239.80 (Sending IP)

    • 35.190.80.1 (Infrastructure IP)

  5. Click Save changes.

  6. Locate the Approved senders list and click Edit.

  7. Click Add and enter the Secure Schools domains listed in the prerequisites (e.g., secureschools.com).

  8. Click Save changes.

3. Verify Protection Settings

Ensure that your Anti-Phishing settings do not conflict with your approved list.

  1. Expand Exchange Online Anti-Phishing (or Gmail equivalent).

  2. Ensure that emails from approved sources are not being subject to additional subject tagging or quarantine actions.

  3. Click Create policy (or Save changes) to apply the configuration.


Always get the most current and complete list of exact IP addresses listed in our article here: Domains and IP Addresses. These values — including both IP addresses and sending domains — can change over time. Using an outdated list may result in failed delivery.