Outlook blocked a legitimate link in an email message


Symptoms

You receive an error stating "This website has been classified as malicious" or "This website has been blocked per you organization's URL policy" when opening a link you know to be legitimate.

Cause

Microsoft Defender for Office 365 has determined the link to be malicious even though it is not.

Resolution

Report the email so that the link can be reviewed.


OUTCOME

System administrators will review the link.