Send Email in ASP.Net

Mengirim Email lewat ASP.Net tidak terlalu memusingkan kepala, berikut ini contoh kodenya :

string EmailPengirim="email@pengirim.com";
string EmailTujuan = "email@tujuan.com";
string Judul = "judul-email";
string UsernameEmail = "username-email";
string PasswordEmail = "password-email";
string SmptServer = "smtp-server";
 int portEmailServer = "port-number";
string IsiEmail = "email-body"

MailMessage Email = new MailMessage(EmailPengirim, EmailTujuan, Judul, IsiEmail);
NetworkCredential Credential = new NetworkCredential(UsernameEmail, PasswordEmail);
SmtpClient SmtpServer = new SmtpClient(SmptServer, portEmailServer);
SmtpServer.Credentials = Credential ;
SmtpServer.Send(Email);

Tetapi dalam develop nanti hati2 dalam hal uji cobanya, email kita akan di kira spam, karena kita sedang develop dan lupa secara terus menerus mengirimkan hal dan alamat yang sama.