To whitelist KnowBe4 servers in Trend Micro Email Security Standard, follow these steps:
- Go to 'Inbound Protection'.
- Select 'Domain-based Authentication'.
- Select 'DMARC'.
- Select 'Default Domain'.
- Select 'Ignored Peers'.
- Add '*.psm.knowbe4.com'.
By following these steps, KnowBe4 Servers will be whitelisted in Trend Micro Email Security Standard, allowing for uninterrupted communication between the two systems.