Question

我想发短信给手机号码印度。我正在使用此代码。

MailMessage message= new MailMessage("FROM SENDER", "9456734352@messaging.sprintpcs.com", "Message Subject", "My Message Data");
SmtpClient mySmtpClient=new SmtpClient("mail.xyz.com");
mySmtpClient.UseDefaultCredentials = True;
mySmtpClient.Send(message);
MessageBox.Show("Message sent successfully");

我收到错误消息

The specified string is not in the form required for an e-mail address.

由于我是新手，所以我对此并不太了解！我能做些什么来完成这项工作？

编辑：

错误

Failure sending mail

Answer 1

您可以使用AT命令和个人手机发送所需数量的短信。只需通过USB线连接到PC，即可为手机分配COM端口

private void button1_Click(object sender, EventArgs e)
{
     this.serialPort = new SerialPort();
     this.serialPort.PortName = "COM5";
     this.serialPort.BaudRate = 9600;
     this.serialPort.Parity = Parity.None;
     this.serialPort.DataBits = 8;
     this.serialPort.StopBits = StopBits.One;
     this.serialPort.Handshake = Handshake.RequestToSend;
     this.serialPort.DtrEnable = true;
     this.serialPort.RtsEnable = true;
     this.serialPort.NewLine = System.Environment.NewLine;
     serialPort.Open();
     send_sms();
 }
 public bool send_sms()
 {
     String SMSMessage = "gsm MESSAGE FROM .NET C#";
     String CellNumber = "+913333333333";

     if (serialPort.IsOpen)
     {
         this.serialPort.WriteLine(@"AT" + (char)(13));
         Thread.Sleep(200);
         this.serialPort.WriteLine("AT+CMGF=1" + (char)(13));
         Thread.Sleep(200);
         this.serialPort.WriteLine(@"AT+CMGS=""" + CellNumber + @"""" + (char)(13));
         Thread.Sleep(200);
         this.serialPort.WriteLine(SMSMessage + (char)(26));
         return true;
     }
     serialPort.Close();
     return false;
 }

发送短信到手机号码

1 个答案: