Using KnowBe4.com to send your users simulated phishing and training emails?
Don't worry, we've got you covered. We've set up a global whitelist rule
that automatically allows all mail that originates from the
mail host, including all subdomains (e.g.
The whitelist rule is based on the hostname listed under the
Whitelist by Hostname tab in the KnowBe4.com whitelisting documentation.
This global whitelisting rule:
- Is automatically enabled for all domains.
- Applies to any sender as long as the message came directly from a
knowbe4.com mail host (or subhost, such as
- When messages are received and then forwarded to another user, they no longer originate from the
knowbe4.com mail host and will therefore be subject to normal filtering.
knowbe4.com staff sends mail through external services, such as Outlook or Gmail, those messages are subject to normal filtering. Generally, that should not be a problem since they don't send their simulated phishing emails that way. However, you can optionally add
knowbe4.com as an Approved Sender if you choose.