A site visitor is offered a form to input their email address and "subscribe" to Chorus America News.
Upon submission of the form; an asynchronous request resolves to the confirmation message: "An email has been sent to the address you provided. Please click the confirmation link to complete your subscription."
On account of a connection error, the error message is displayed to the user, "Could not connect to the server. Please check your Internet connection."
On account of system misconfiguration, error messages will be displayed for a permission failure, or for an invalid Mailing Group.