If your organization uses VIPRE's Email Security for spam filtering, you can whitelist KnowBe4 to allow our simulated phishing emails and training notifications to reach your users. You can also whitelist KnowBe4's phishing and landing domains in VIPRE Endpoint Security to allow your users to access phishing test landing pages.

Whitelisting by IP Address

We recommend whitelisting our IP addresses in your spam filter. For more information, see VIPRE's Guided Setup of VIPRE Email Security Cloud and whitelist by IP address.

For the most up-to-date list of our IP addresses, see the KnowBe4's IP Addresses, Hostnames, and Headers section of our Whitelisting Guide.

Whitelisting by Hostname

If you are unable to whitelist by IP address, you can whitelist our mail server hostnames instead. For more information, see VIPRE's Guided Setup of VIPRE Email Security Cloud article and whitelist by domain.

For the most up-to-date list of our hostnames, see the KnowBe4's IP Addresses, Hostnames, and Headers section of our Whitelisting Guide article.

Whitelisting Landing Pages

To allow landing pages attached to your phishing campaigns to reach your users, you can whitelist our phishing and landing domains. To whitelist phishing and landing domains in VIPRE Endpoint Security, first request the list of root phish and landing domains from the KnowBe4 support team. Then, see VIPRE's Add Allowed Websites article to add these domains to VIPRE.

After following the instructions in this article, we recommend setting up a test phishing campaign for one or two users to ensure your whitelisting was successful. If your whitelisting was unsuccessful, we recommend that you contact VIPRE for assistance. See the Troubleshooting section of our Whitelisting Guide article for an email template you can send to VIPRE.