Public Class EmailService
    Implements IIdentityMessageService
    Public Function SendAsync(message As IdentityMessage) As Task Implements IIdentityMessageService.SendAsync
        ' Inserire qui la parte di codice del servizio di posta elettronica per l'invio di un messaggio.
        'Return Task.FromResult(0)
        Dim Client As SmtpClient = New SmtpClient()
        Return client.SendMailAsync("email from web.config here",
                                        message.Destination,
                                        message.Subject,
                                        message.Body)

    End Function
End Class

<system.net>
    <mailSettings>
      <smtp from="username@fastwebnet.it">
        <network host="smtp.fastwebnet.it"
                 port="587"
                 enableSsl="true"
                 userName="username"
                 password="password"/>
      </smtp>
    </mailSettings>
  </system.net>