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TLSEmail.java
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TLSEmail.java
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import java.io.*;
import java.lang.*;
import java.util.*;
import java.io.UnsupportedEncodingException;
import java.util.Date;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import java.util.Properties;
import javax.mail.*;
public class TLSEmail {
/**
Outgoing Mail (SMTP) Server
requires TLS or SSL: smtp.gmail.com (use authentication)
Use Authentication: Yes
Port for TLS/STARTTLS: 587
*/
private static void sendEmail(Session session, String toEmail, String subject, String body)
{
try
{
MimeMessage msg = new MimeMessage(session);
//set message headers
msg.addHeader("Content-type", "text/HTML; charset=UTF-8");
msg.addHeader("format", "flowed");
msg.addHeader("Content-Transfer-Encoding", "8bit");
msg.setFrom(new InternetAddress("server1csec@gmail.com", "Please Don't Reply"));
msg.setReplyTo(InternetAddress.parse("server1csec@gmail.com", false));
msg.setSubject(subject, "UTF-8");
msg.setText(body, "UTF-8");
msg.setSentDate(new Date());
msg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(toEmail, false));
System.out.println("Message is ready");
Transport.send(msg);
System.out.println("Email Sent Successfully!!");
}
catch (Exception e) {
e.printStackTrace();
}
}
private static String sendMail(String toEmail)
{
try{
final String fromEmail = "server1csec@gmail.com"; //requires valid gmail id
final String password = "xxxxxxxx"; // correct password for gmail id
final String to = toEmail; // can be any email id
//System.out.println("TLSEmail Start");
Properties props = new Properties();
props.put("mail.smtp.host", "smtp.gmail.com"); //SMTP Host
props.put("mail.smtp.port", "587"); //TLS Port
props.put("mail.smtp.auth", "true"); //enable authentication
props.put("mail.smtp.starttls.enable", "true"); //enable STARTTLS
//create Authenticator object to pass in Session.getInstance argument
Authenticator auth = new Authenticator() {
//override the getPasswordAuthentication method
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(fromEmail, password);
}
};
Random rand = new Random(System.currentTimeMillis());
double times = System.currentTimeMillis();
int g = (int)times;
int rand1 = rand.nextInt(g);
final String r = ""+ rand1;
Session session = Session.getInstance(props, auth);
sendEmail(session, toEmail,"Your OTP for verification", r);
return r;
} catch (Exception e) {
e.printStackTrace();
}
return "None";
}
public static String otp(String toEmail)
{
String r = sendMail(toEmail);
return r;
}
/*public static void main(String[] args) {
System.out.println("Enter the person to send the message to");
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
try
{
String toEmail = br.readLine();
sendMail(toEmail); }
}//*/
}