System.net.mail se l'email è di hotmail mi manda sempre in indesiderat...

            Dim myEmail As New Net.Mail.MailMessage

            myEmail.IsBodyHtml = True
            myEmail.From = New MailAddress("login@miosito.com", "miosito")
            myEmail.Subject = "Conferma indirizzo email"
            myEmail.To.Add(New MailAddress(email, "Destinatario"))
            myEmail.Body = CorpoEmail
            Dim mySmtpClient As New System.Net.Mail.SmtpClient
            mySmtpClient.Send(myEmail)

<system.net>
        <mailSettings>
            <smtp from="login@miosito.com">
                <network host="smtp.miosito.com" password="pass" userName="login@miosito.com"/>
            </smtp>
        </mailSettings>
    </system.net>

myEmail.Headers.Add("X-Mailer", "Microsoft Office Outlook 12.0")

 SmtpClient d=new SmtpClient("out.alice.it");
d.Credentials = new System.Net.NetworkCredential("esempio@alice.it", "tuapass");
d.Send(g);