We will be adding capabilities to making it possible for Security Operations (SecOps) to customize end user quarantine notifications with their respective organization sender address and custom subject.
This message is associated with Microsoft 365 Roadmap ID 93301.
When this will happen:
Standard: will begin rolling out in late July and is expected to be complete by early August.
Government: will begin rolling out in early August and is expected to be complete by mid-August.
How this will affect your organization:
This change will enable admins to customize the sender address of the quarantine notification as well as the subject of the notification.