CDO.Message message = new CDO.Message();

                CDO.IConfiguration configuration = message.Configuration;

                ADODB.Fields fields = configuration.Fields;

                ADODB.Field field = fields[" http://schemas.microsoft.com/cdo/configuration/smtpserver"];

                field.Value = "smtp.zoho.com";

                field = fields[" http://schemas.microsoft.com/cdo/configuration/smtpserverport"];

                field.Value = 465;

                field = fields[" http://schemas.microsoft.com/cdo/configuration/sendusing"];

                field.Value = CDO.CdoSendUsing.cdoSendUsingPort;

                field = fields[" http://schemas.microsoft.com/cdo/configuration/smtpauthenticate"];

                field.Value = CDO.CdoProtocolsAuthentication.cdoBasic;

                field = fields[" http://schemas.microsoft.com/cdo/configuration/sendusername"];

                field.Value ="username";

                field = fields[" http://schemas.microsoft.com/cdo/configuration/sendpassword"];

                field.Value = "password";

                field = fields[" http://schemas.microsoft.com/cdo/configuration/smtpusessl"];

                field.Value = "true";

                fields.Update();

                Console.WriteLine(String.Format("Building CDO Message..."));

                message.From ="from email";

                message.To = "to email";

                message.Subject = "Test message.";

                message.TextBody = "This is a test message. Please disregard.";