Hi,
This code emails the contents of 'TextBox1' and 'TextBox3' to
rcv@domain.com.. this code seemed to be working fine in debug mode and
DID mail rcv@domain.com However when i uploaded the website to my
hosting account, my browser popped up and alertbox saying:
"Sys.WebForms.PageRequestServerManagerErrorException An unknown error
occured while processing the request on the server. The status code
returned from the server was : 500"

CODE
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protected void ImageButton1_Click(object sender, ImageClickEventArgs
e)
   {
       if (Process(TextBox1.Text) == true)       //Checks if supplies
string is a valid email type or not
       {                                                         //
There was a good reason to do it server side as it was locking up
                                                                 //
other controls
           Label1.Text = null;
           //Create Mail Message Object with content that you want to
send with mail.
           System.Net.Mail.MailMessage MyMailMessage = new
System.Net.Mail.MailMessage("snd@gmail.com", "rcv@domain.com",
           "WebVisitor:" + DateTime.Now.ToString("MMMM dd yyyy"),
"email: " + TextBox1.Text + "\nquery: " + TextBox3.Text);

           MyMailMessage.IsBodyHtml = false;

           //Proper Authentication Details need to be passed when
sending email from gmail
           System.Net.NetworkCredential mailAuthentication = new
System.Net.NetworkCredential("send@gmail.com", "password");

           //Smtp Mail server of Gmail is "smpt.gmail.com" and it
uses port no. 587
           System.Net.Mail.SmtpClient mailClient = new
System.Net.Mail.SmtpClient("smtp.gmail.com", 587);

           //Enable SSL
           mailClient.EnableSsl = true;

           mailClient.UseDefaultCredentials = false;

           mailClient.Credentials = mailAuthentication;

           mailClient.Send(MyMailMessage);

           TextBox1.Text = null;
           TextBox3.Text = null;
       }
       else
       {
           Label1.Text = "is INVALID";
           TextBox1.Text = null;
       }
   }
----------------------------