Task dependencies

I have several "Services" created under the Request catalog that contain a workflow of tasks. These tasks in the templates are dependent upon one completing before the next can continue.

For example a new server request would fire off these tasks:

Build VM
Assign IP
Add to Monitoring
Scan for Vulnerabilities
Add Firewall rules
Add to backup

Currently when this Service is used all the tasks fire emails off to the owners or group they are assign to at the same time. This causes some confusion as their dependencies may not yet be completed.

Can the email notification for each task be delayed until the Dependency is completed? That way the technicians responsible will not have to waste time attempting a task that they cannot complete.