Using .NET 2.0 in Visual Studio 2005, I am attempting to send an email.  I am
utilizing Yahoo as the SMTP provider.  I am able to send emails using the
setup instructions below using Outlook.  When I attempt to send an email
using C#, I get a message that no email was sent.

I have included the section of C# that covers this issue.

Configure your POP email program.

Sign-in Information
Server Settings
username - info@MyCompany.com
password - myPassword

Incoming Mail (POP3)
pop.bizmail.yahoo.com
Use SSL, port: 995

Outgoing Mail (SMTP)
smtp.bizmail.yahoo.com
Use SSL, port: 465; authentication required
As soon as you set up your account, you can start sending and receiving
messages from your new email address!

       public static void SendEmail()
       {
           /* create the email message */
           MailMessage message
               = new MailMessage("info@MyCompany.com",
               "ref@yourCompany.Com", "subject of the Message ",
               "body fo the message ");
           /* create SMTP Client and add credentials */
           SmtpClient smtpClient = new SmtpClient();
           smtpClient.Port = 465;
           smtpClient.EnableSsl = true;
           smtpClient.UseDefaultCredentials = false;
           smtpClient.Credentials
               = new NetworkCredential("info@MyCompany.com",
               "myPassword");
           smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;
           smtpClient.Host = "smtp.bizmail.yahoo.com";
           smtpClient.PickupDirectoryLocation = "C:\\Temp";
           
           /*Send the message */
           try
           {
               smtpClient.Send(message);
           }
           catch (System.Net.Mail.SmtpException e)
           {
               MessageBox.Show(e.Message);
           }
           catch (Exception e)
           {
               MessageBox.Show(e.Message);
           }

       }