{
MailMessage ^Mail = gcnew MailMessage();
Mail->Subject = TextBox2->Text; //this is the subject of the message
Mail->To.Add(TextBox4->Text); //this is for the "To" e-mail
Mail->From = gcnew MailAddress(TextBox1->Text); //this is your g-mail
Mail->Body = TextBox3->Text; //this is the message
SmtpClient ^SMTP = gcnew SmtpClient("smtp.gmail.com" ) ;
SMTP->EnableSsl = true;
SMTP->Credentials = gcnew System::Net::NetworkCredential(TextBox1->Text, MaskedTextBox1->Text); //this is your g-mail and its password
SMTP->Port = 587;
SMTP->Send(Mail);
}
----------------------------------------------------------------------------------------
and you should put this before "private ref class Form1 : System::Windows::Forms::Form":

using namespace System::Net::Mail;

[Edited by author Hamadah, 12/5/2009 9:35:37 AM]

[Edited by Hamadah, 12/5/2009 9:36:05 AM]