Whitelisting Dune Security in Proofpoint

Necessary steps to take if your organization uses Proofpoint to guarantee simulated email deliverability

To ensure the successful delivery of Dune Security’s phishing simulation emails and training notifications, you will need to whitelist Dune Security’s IP address and domains within your Proofpoint environment. This guide provides step-by-step instructions for both Proofpoint Essentials and Proofpoint Enterprise users.

Whitelisting in Proofpoint Essentials

1. Navigate to Security Settings:
   • Go to Security Settings > Email > Sender Lists.
2. Add Dune Security’s IP Address:
   • Under the Safe Sender list, enter the following IP address:
     IP Address: 52.201.210.35

3. Save Changes:

   • Click Save to apply the settings.

   Note: If you experience issues with emails that have attachments, refer to Proofpoint’s article on Blocks by Default for troubleshooting.

Whitelisting in Proofpoint Enterprise

1. Access the Admin Console:
   • Navigate to your Proofpoint Enterprise Admin Console.
2. Add Dune Security’s IP Address to the Organizational Safe List:
   • Go to Email Protection.
   • Under Spam Detection, select Organizational Safe List.
   • Click Add.
3. Enter Whitelisting Details:
   • In the Global Safe List window, enter:
     • Filter Type: Sender Hostname
     • Operator: Equals
     • Value: 52.201.210.35
4. Save Changes:
   • Click Save Changes.

URL Defense / Targeted Attack Protection (TAP)

To avoid issues with Proofpoint’s TAP service, add Dune Security’s IP and domains to the URL Defense Exceptions list:

1. Access URL Defense Settings:
   • Go to Email Protection > Targeted Attack Protection > URL Defense.
   • Click URL Rewrite Policies.
2. Add the Following Exceptions:
   • IP Address: 52.201.210.35
   • Domains: Please refer to the list provided via email by Dune Security.
3. Save Changes:
   • Click Save Changes.

Prevent Emails from Going to Spam

1. Navigate to the Organizational Safe List:
   • Go to Email Protection > Spam Detection > Organizational Safe List.
2. Add Dune Security’s IP Address:
   • IP Address: 52.201.210.35

Allowlisting in Proofpoint Email Protection

To further ensure deliverability, allowlist Dune Security by IP address in Proofpoint’s Email Protection:

1. Navigate to Email Firewall > Rules:
   • Go to Email Firewall > Rules in the Proofpoint Admin Center.
2. Create a New Rule:
   • Name the rule: DuneSecurity Allowlisting by IP Address.
3. Enable the Rule:
   • Set Enable to On.
4. Add Condition:
   • IP Address: 52.201.210.35
5. Set the Delivery Method:
   • In the Dispositions section, set Delivery Method to Deliver Now.