Mail from configuration

here is a possible change.

now, go to Mailer Policy, and add a Policy with:
- Type: Workflow Notificatipns
- Sub-type: the machine name of a notification
- Set the From address and other options at will

I am not sure, but I think the current 3.0.x code already contains an id. Please check and re-open if this is not as desired.

Automatically closed - issue fixed for 2 weeks with no activity.