Answer the questions in this wizard to determine the best method for whitelisting KnowBe4 based on your specific setup.
Is your mail sent through either a cloud or on-premises spam filtering application before it is sent to your mail server?
You will need to whitelist your email or web filter by either IP address or hostname and then whitelist your mail server by header.Click on your email or web filter below to learn how to whitelist for your filter and then click the arrow at the top of the screen to advance to Step 2:
AppRiver
Barracuda
Cisco Ironport
EdgeWave
Forcepoint (Websense)
Fortinet FortiGate
Lotus Domino
McAfee/MX Logic
Mimecast
Proofpoint
Securence
SonicWall
Sophos
SpamAssassin
Symantec.Cloud / Message Labs
Mailprotector
TrendMicro
VIPRE
Other
Don't see your email or web filter listed above? Unfortunately, if it's not listed above then we don't currently have documentation available for that filter. Please see our Whitelisting Data and Anti-Spam Filtering Information article for general whitelisting information or contact support for assistance. Can't whitelist in your email filter? You can use Smart Hosting instead.
After you've whitelisted your email or web filter, you will need to whitelist your email server by header.
Click on your mail server below to learn more:
To whitelist KnowBe4 by header in Exchange, see one of the following articles:
Whitelist by Email Header in Exchange 2010 OR Whitelisting by Email Header in Exchange 2013, 2016, or Microsoft 365
If you are using Microsoft 365, we recommend the following:
We recommend using Microsoft's Advanced Delivery feature. See our How to Use Advanced Delivery Policies in Microsoft 365 article for more information.
Alternatively, you can use our Direct Message Injection (DMI) feature. See our DMI Configuration Guide for more information.
Lastly, you can use whitelist by header in Microsoft 365. See this article for more information.
If you're using Microsoft 365's Advanced Threat Protection (ATP) and you want to exempt KnowBe4's phish domains, see our How to Bypass Safe Link Attachment Processing of ATP article.
To whitelist KnowBe4 by header in GSuite Google Apps, see the following article:
Whitelisting By Header In GSuite/Google Apps
At this time, we do not have documentation on other mail servers. Please see our Whitelisting Data and Anti-Spam Filtering Information article for general whitelisting information or contact support for assistance.
If you are not using an email or web filter, we recommend that you whitelist KnowBe4 in your mail server by IP address. Click your mail server below to learn more:
To whitelist KnowBe4 by IP address in Exchange, see one of the following articles:
Setting up an IP Allow List in Exchange 2007 Setting up an IP Allow List in Exchange 2010 Whitelisting by IP Address in Exchange 2013, 2016, or Exchange 2019
To whitelist KnowBe4 by IP address in GSuite Google Apps, see the following article:
Whitelisting by IP Address in GSuite/Google Apps
