Problema ao enviar email

java.io.IOException: IOError 10053 during socket:: write \n
        at com.sun.midp.io.j2me.socket.Protocol.write0(), bci=0
        at com.sun.midp.io.j2me.socket.Protocol.writeBytes(), bci=12
        at com.sun.midp.io.BaseOutputStream.write(), bci=46
        at java.io.OutputStream.write(OutputStream.java:58)
        at br.gov.ana.fiscalizacao.frmSincronismo.sendData(frmSincronismo.java:254)
        at br.gov.ana.fiscalizacao.frmSincronismo.sincronizar(frmSincronismo.java:88)
        at br.gov.ana.fiscalizacao.frmSincronismo.access$000(frmSincronismo.java:27)
        at br.gov.ana.fiscalizacao.frmSincronismo$1.run(frmSincronismo.java:373)

public void sendEmail() {
    SocketConnection sc = null;
    InputStream is = null;
    OutputStream os = null;
    StringBuffer sb;
     try {
       sc = (SocketConnection) Connector.open("socket://"+SMTP+":25");
       is = sc.openInputStream();
       os = sc.openOutputStream();
       sb = new StringBuffer();

       // Send SMTP-Commands
       os.write(("HELO agencia \r\n").getBytes());
       os.write(("MAIL FROM:"+mailFrom+"\r\n").getBytes());
       os.write(("RCPT TO:"+mailTo+"\r\n").getBytes());
       os.write("DATA\r\n".getBytes());
       os.write(("Date:"+new Date()+"\r\n").getBytes());
       os.write(("From:"+mailFrom+"\r\n").getBytes());
       os.write(("To:"+mailTo+"\r\n").getBytes());
       os.write(("Subject: TESTE \r\n").getBytes());
       os.write(("MENSAGEM TESTE \r\n").getBytes());
       os.write(".\r\n".getBytes());
       os.write("QUIT\r\n".getBytes());

       int c = 0;

       while (  (c = is.read() ) != -1)  {
          sb.append( (char)c);

     }

     System.out.println(sb.toString());
   }
   catch (Exception e) {
     e.printStackTrace();
   }

   finally {
        try {
           if(is != null) {
              is.close();
           }
           if(os != null) {
              os.close();
           }
           if(sc != null) {
              sc.close();
           }
        } catch(IOException e) {
           e.printStackTrace();
        }
     }

 }