From approximately 9:09 a.m. (ET) to 1:07 p.m. (ET), our service for sending specific types of emails from KMSAT or PhishER experienced downtime. During this period, message delivery was delayed. Affected email types included: KnowBe4 training notifications, PhishER emails, account emails (such as password resets and account confirmations), and report emails (such as phishing test reports, user import confirmations, and EEC Pro results).
The delay began to clear at approximately 12:55 p.m. (ET) after the mail was rerouted through a different IP address which was not experiencing an outage. No data loss occurred as a result of this issue.
To prevent this issue in the future, the affected email services will now send from the following IP range: 18.104.22.168/26. Review our whitelisting guide for additional whitelisting assistance.