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;
import java.util.Properties;

public class EmailSender {

    public static void main (String[] args) {
        EmailSender es1 = new EmailSender();
        es1.emailSender("kapa@gmaiil.com", "kapa", "asdadsadasda");

    }


    public String emailSender (String email, String subject, String content) {

        final String username = "emailsendTM@gmail.com";
        final String password = "tm123456";
        final String toEmail = "agelos.tsal@gmail.com";
        content = "Sender's email: " + email + "\n" + "\n" + "\n" + content;

        try {

            Properties properties = new Properties();
            properties.put("mail.smtp.auth", true);
            properties.put("mail.smtp.starttls.enable", "true");
            properties.put("mail.smtp.host", "smtp.gmail.com");
            properties.put("mail.smtp.port", "587");
            properties.put("mail.smtp.ssl.trust", "smtp.gmail.com");

           java.security.Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());

            System.out.print("done1\n");

            Session mailsession = Session.getInstance(properties,
                    new javax.mail.Authenticator(){
                        protected PasswordAuthentication getPasswordAuthentication(){
                            return  new PasswordAuthentication(username, password);
                        }
                    });

            System.out.print("done2\n");

//            mailsession.setDebug(true);

            Message mailMessage = new MimeMessage(mailsession);

            mailMessage.setFrom(new InternetAddress(username));
            mailMessage.setRecipient(Message.RecipientType.TO, new InternetAddress(toEmail));
            mailMessage.setText(content);
            mailMessage.setSubject(subject);

            System.out.print("done3\n");

            Transport transport = mailsession.getTransport("smtp");
            System.out.print("done4\n");

            transport.connect("smtp.gmail.com", username, password);
            System.out.print("done5\n");
            transport.sendMessage(mailMessage, mailMessage.getAllRecipients());
            System.out.print("done6\n");
            Transport.send(mailMessage);

            System.out.print("done");


        }catch(Exception e) {

            System.out.print(e + "\n" + "ddddddddddddddddddddddddddddddddddddd");

        }

        return "";

    }
}