Uma classe simples para envio de email. Requer: - commons-email-1.3.1.jar (http://commons.apache.org/proper/commons-email/userguide.html) - mail-1.4.3.jar (http://www.oracle.com/technetwork/java/javamail/)

EnviaEmail.java

import org.apache.commons.mail.Email;
import org.apache.commons.mail.SimpleEmail;

public class EnviaEmail {

  public static void main(String[] args) {
		try {
			Email email = new SimpleEmail();
			email.setHostName("smtp.gmail.com");
			email.setSmtpPort(587);
			email.setAuthentication("userFrom@gmail.com", "password");
			email.setStartTLSEnabled(true);
			email.setFrom("userFrom@gmail.com");
			email.setSubject("TestMail");
			email.setMsg("This is a test mail ... :-)");
			email.addTo("userTo@gmail.com");
			email.send();
			System.out.println("Email sent successfully!!!");
		} catch (Exception e) {
			e.printStackTrace();
		}
		
	}

}