email property
The group's email address.
This property can be updated using the Directory API. Note: Only a group owner can change a group's email address. A group manager can't do this. When you change your group's address using the Directory API or the control panel, you are changing the address your subscribers use to send email and the web address people use to access your group. People can't reach your group by visiting the old address.
Implementation
core.String? email;