KnowBe4 has implemented a fix and are currently monitoring the results. Their support team has confirmed that there is no need to resend any emails, as affected emails will be reprocessed automatically. We will provide a further update as more information becomes available.
Investigating · UTC
We are currently aware of an issue affecting our email security provider, KnowBe4, which may be impacting email delivery.
KnowBe4 is investigating the issue and we will provide a further update as soon as more information becomes available.