Issue: A lot of emails from trusted senders are quarantined due to including malicious URLs. Is it possible to add a domain or address as a trusted sender in Cloud Protection for Microsoft 365? Resolution: If a lot of emails are quarantined due to malicious URLs from trusted senders, you can add them to the trusted senders list by following these steps: Log into Cloud Protection PortalGo to Policies Select policyGo to the General settingsTurn on the Trusted senders featureAdd the trusted email sender or domain addressesClick Save From the Cloud services page in the portal you can assign different policies for your cloud services.