import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.internet.*;
import javax.mail.*;
import java.util.Properties;

public class Mail {

    public static void main(String[] args) throws MessagingException {
        Properties p = new Properties();
        p.put("mail.smtp.host", "smtp.yandex.ru");
        p.put("mail.smtp.socketFactory.port", 465);
        p.put("mail.smtp.socketFactory.class","javax.net.ssl.SSLSocketFactory");
        p.put("mail.smtp.auth", "true");
        p.put("mail.smtp.port", 465);

        Session session = Session.getDefaultInstance(p,
                new javax.mail.Authenticator(){
                    protected PasswordAuthentication getPasswordAuthentication(){
                        return new PasswordAuthentication("notification.netcracker@yandex.ru", "netcrackerproject");
                    }
                });
        try{
            MimeMessage mess = new MimeMessage(session);
            mess.setFrom(new InternetAddress("notification.netcracker@yandex.ru"));
            mess.setRecipients(Message.RecipientType.TO, InternetAddress.parse("calomonbkm@gmail.com"));
            mess.setSubject("Test");
            mess.setText("TEST");
            Transport.send(mess);
            System.out.println("Готово!");
        }catch (Exception ex){
            ex.printStackTrace();
        }
    }
}