How to Whitelist KnowBe4 in Cisco Ironport

If you're using Cisco Ironport spam filtering, you can whitelist KnowBe4 to allow our simulated phishing test emails and training notifications through to your end users.

The instructions below include information from the Cisco whitelisting article. If you run into issues whitelisting KnowBe4 in Cisco Ironport, we recommend reaching out to Cisco for specific instructions. You can also contact our support team whenever you need assistance.

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Whitelisting Cisco Ironport
Skipping Outbreak Filter Scanning

Whitelisting Cisco Ironport

To whitelist KnowBe4 in Cisco Ironport, do the following:

1. From the Cisco Ironport admin console, navigate to the Mail Policies tab.
2. Select HAT Overview. Please ensure that InboundMail lister is selected.
3. Click WHITELIST.
4. Click Add Sender and add our IPs or hostnames. For the most up-to-date list of our IP addresses and hostnames, please see this article. 
5. Click Submit and then Commit Changes.

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Skipping Outbreak Filter Scanning

The instructions above for whitelisting Cisco Ironport do not prevent Ironport's Outbreak Filter from scanning emails from our IPs or hostnames. If you are experiencing issues with our emails being quarantined, you may also need to set our IPs or hostnames to bypass this filter. 

To skip Outbreak Filter Scanning, do the following:

1. From your Cisco Ironport admin console, navigate to the Mail Policies tab.
2. Under the Message Modification section, enter our IPs or hostnames in the Bypass Domain Scanning table. For the most up-to-date list of our IP addresses and hostnames, please see this article. 
3. Click Submit and then Commit Changes.

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