This article describes a scenario when your company requires to take action against emails with empty envelop from or header from sender.
Email Security.cloud
In order to take action against emails with empty envelop from or empty header from sender, this condition is available under :
Dashboard > Services > Data Protection
Create a New Policy rule or add the condition to one of your existing data protection rules. The conditions are located in the following list :
Click Add rule > Add condition :