Is there a way to configure email notifications so that any task deemed “high priority” sends out a high priority email notification?
you should be able to set something like this up with the help of custom fields in connection with Zapier for example.
The trigger could then be a task in a specific project with a specific „high priority“ selection in a custom field. The action can be sending an email with a specific message.
Flowsana offers this too, see Email automation - #4 by Phil_Seeman