GabrielEmailApp

package enviando.email;

import java.util.Properties;

import javax.mail.Address;
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 App {

    private static String username = "seu-email@gmail.com";
    private static String senha = "sua-senha";

    public static void main(String[] args) {
        try {
            Properties properties = new Properties();
            properties.put("mail.smtp.ssl.trust", "*");
            properties.put("mail.smtp.auth", "true");
            properties.put("mail.smtp.starttls", "true");
            properties.put("mail.smtp.host", "smtp.gmail.com");
            properties.put("mail.smtp.port", "465");
            properties.put("mail.smtp.socketFactory.port", "465");
            properties.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");

            properties.put("mail.smtp.ssl.checkserveridentity", "true");

            Session session = Session.getInstance(properties, new Authenticator() {
                @Override
                protected PasswordAuthentication getPasswordAuthentication() {
                    return new PasswordAuthentication(username, senha);
                }
            });

            Address[] toUser = InternetAddress.parse("tadeujdev@gmail.com, tadeupalermoti@gmail.com");
            Message message = new MimeMessage(session);
            message.setFrom(new InternetAddress(username, "Tadeu E. Palermo"));
            message.setRecipients(Message.RecipientType.TO, toUser);
            message.setSubject("Chegou e-mail enviado pelo Java!");
            message.setText("Que bom, você recebeu um e-mail enviado pelo Java!");
            Transport.send(message);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}