Clicking the Add recipient link, opens a new view. Here you can add recipients in three different ways:
1. Users or group - Here you designate a user or group in the existing directory service. You can either search for or browse to the person you want as a recipient.
2. E-mail address - Enter an e-mail address in the field.
3. Metadata - Here you select from the metadata that can retrieve the e-mail address automatically (such as Page manager, Last published by)
The page published: 2019-01-03