sending email get error c#

Question

hello everyone 

 this is my window application code to send email

this my code

 

sending email failed help plz

am using c#2010

 

try

{

SmtpClient client=new SmtpClient("smptp.gmail.com",465);

MailMessage message = new MailMessage();

message.From = new MailAddress(txtemail.Text);

message.To.Add(txtreciever.Text);

message.Body = txtbody.Text;

message.Subject = txtsubject.Text;

client.UseDefaultCredentials = false;

client.EnableSsl = true;

if (txtattachment.Text != "")

{

message.Attachments.Add(new Attachment(txtattachment.Text));

}

client.Credentials = new System.Net.NetworkCredential(txtemail.Text, txtpassword.Text);

client.Send(message);

message = null;

MessageBox.Show("Message Sent");

}

catch(Exception ex)

{

MessageBox.Show( "Failed to Send Message");

}