After creating a workflow using the Request Approval widget, the approval tasks are created for the approvers, but they don’t get an email notification.
Even when completing the tasks in SharePoint, the status email that goes to the workflow initiator are not sent. What’s wrong with the approval task notification emails?
In order for these notification emails to be sent, make sure that the “Reply to” email is set in the System Settings page of the Workflow Conductor pages in Central Admin (see a screen shot below). If this value is blank, the task approval notifications will not be sent.