Send email notification when update is added to a task on a project I own

[#1]

It would be great if the project owner could get an email notification when an update is added to any task on their project. As a project owner, I want to be informed with update that are being made to tasks on my project.

This is currently possible by subscribing to each individual task and subtask if added. It would be great if this could be an option without having to subscribe to every single task in the project.