CDOSYS + Quoted-printable

 

 Code snippet

 'private void cmdSend_Click(object sender, System.EventArgs e)

 {

 try

 {

 CDO.Message oMsg = new CDO.MessageClass();

 CDO.Configuration oConfig = new CDO.ConfigurationClass();

 ADODB.Fields oFields = oConfig.Fields;

 StringBuilder MailString = new StringBuilder();

 int x = 1000;

 // Set up configuration to send to remote SMTP server

 oFields["https://schemas.microsoft.com/cdo/configuration/sendusing"].Value = CDO.CdoSendUsing.cdoSendUsingPort;

 oFields["https://schemas.microsoft.com/cdo/configuration/smtpserver"].Value = txtSMTPServer.Text;

 oFields["https://schemas.microsoft.com/cdo/configuration/smtpserverport"].Value = 25;

 oFields.Update();

 // Apply the configuration object to the message object

 oMsg.Configuration = oConfig;

 // Make the root bodypart "quoted-printable"

 oMsg.BodyPart.ContentTransferEncoding = "quoted-printable";

 // Set up the message

 oMsg.From = txtFrom.Text;

 oMsg.To = txtTo.Text;

 oMsg.Subject = txtSubject.Text;

 MailString.Append("<table>");

 while (x > 0) 

 {

 MailString.Append("<tr><td>this is a test, </td></tr>");

 x--;

 }

 MailString.Append("</table>");

 oMsg.HTMLBody = MailString.ToString();

 oMsg.Send();

 txtOutput.Text = "Message Sent!";

 MailString = null;

 oFields = null;

 oConfig = null;

 oMsg = null;

 }

 catch(Exception MyException)

 {

 txtOutput.Text = MyException.Message;

 }

 }