How do I send an e-mail in Java?

Question

I need to send e-mails from a servlet running within Tomcat. I\'ll always send to the same recipient with the same subject, but with different contents.

What\'s a sim

Answer 1

import java.util.Properties;

import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;



public class sendMail {

    static  String  alertByEmail(String emailMessage){
        try{
                     
            final String fromEmail = "abc@gmail.com";
            final String password = "********"; //fromEmail password 
            final String toEmail = "xyz@gmail.com";
            System.out.println("Email configuration code start");
            Properties props = new Properties();
            props.put("mail.smtp.host", "smtp.gmail.com"); //SMTP Host set by default this
            props.put("mail.smtp.port", "587"); //TLS Port you can use 465 insted of 587
            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() 
            {
            
                protected PasswordAuthentication getPasswordAuthentication() 
                {
                        return new PasswordAuthentication(fromEmail, password);
                }
            };
                        Session session = Session.getInstance(props, auth);
            
                        MimeMessage message = new MimeMessage(session);
                        message.setFrom(new InternetAddress(fromEmail));
                        message.addRecipient(Message.RecipientType.TO, new 
                                                              InternetAddress(toEmail));
                        message.setSubject("ALERT");
                        message.setText(emailMessage);//here you can write a msg what you want to send... just remove String parameter in alertByEmail method oherwise call parameter
                        System.out.println("text:"+emailMessage);
                        Transport.send(message);//here mail sending process start.
                        System.out.println("Mail Sent Successfully");
        }
        catch(Exception ex)
        {
                        System.out.println("Mail fail");
                        System.out.println(ex);
        }
        return emailMessage;
        
        }
public static void main(String[] args) {
    String emailMessage = "This mail is send using java code.Report as a spam";
    alertByEmail(emailMessage);
    }
}











https://github.com/sumitfadale/java-important-codes/blob/main/Send%20a%20mail%20through%20java 


enter code here