Form
---------------------------------------------------------------------------------------------------------------------------------------
<div class="container">
                <div class="row">
                    <div class="col-xs-12">

                        <div class="row">
                            <div class="col-xs-6">

                                 <form method="POST" action="sendEmail.do">
                                 <legend style="color: #fff">Entre em Contato</legend>
                                 <fieldset>
                                 <div class="form-group">
                                 <label class="control-label">Nome
                                 <input type="text" class="form-control" name="nome">
                                 </label>
                                 </div>

                                 <div class="form-group">
                                 <label class="control-label">Email
                                 <input type="email" class="form-control" name="email">
                                 </label>
                                 </div>

                                 <div class="form-group">
                                 <label class="control-label">Telefone
                                 <input type="text" class="form-control" name="tel">
                                 </label>
                                 </div>

                                 <div class="form-group">
                                 <label class="control-label">Mensagem
                                     <textarea class="form-control" size="1000" name="mens" cols="21" rows="10"></textarea>
                                 </label>
                                 </div>

                                 </fieldset>

                                 <button type="submit" class="btn btn-primary">Enviar</button>

                                 </form>
                            </div>

                            <div class="col-xs-6">

                            <img class="center-block thumbnail img-responsive" style="border: 1px solid black" src="css/imagens/testesite.jpg">
                            <div class="caption text-center" style="color: #fff">
                                <h2 class="text-success">Obrigado pelo seu contato.</h2>
                                 Deixe aqui sua mensagem, e o mais
                                 breve possível entrarei em contato,
                                 será um prazer atende-ló.
                                 <br>
                                 Att,
                                 <br>
                                 Alan Cesar Rocha.
                            </div>
                            </div>

                        </div>

                     </div>
                    </div>
                   </div>
           ------------------------------------------------------------------------------------------------


Classe do SimpleEmail
------------------------------------------------------------------------------------------------
package br.com.portifolio;

import java.util.Properties;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import org.apache.commons.mail.DefaultAuthenticator;
import org.apache.commons.mail.EmailException;
import org.apache.commons.mail.SimpleEmail;

/**
 *
 * @author Alan
 */
public class EnviarMail {



    public void enviar(String nome,String msg,String toEmail,String fromEmail,String pass){

            SimpleEmail newemail=new SimpleEmail();
            newemail.setHostName("smtp.googlemail.com");
            newemail.setSmtpPort(465);
            newemail.setSSLOnConnect(true);
            newemail.setAuthentication(fromEmail,pass);
        try {
            newemail.setFrom(fromEmail,nome);
            newemail.addTo(toEmail);
            newemail.setSubject("Criticas/sugestões/elogios");
            newemail.setMsg(msg);

            newemail.send();
        } catch (EmailException ex) {
            Logger.getLogger(EnviarMail.class.getName()).log(Level.SEVERE, null, ex);
        }




    }
    public static void main(String [] args){




    }
}
  ------------------------------------------------------------------------------------------------


Servlet
------------------------------------------------------------------------------------------------

package br.com.portifolio;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.mail.EmailException;
import org.apache.commons.mail.SimpleEmail;

/**
 *
 * @author Alan
 */
public class sendEmail extends HttpServlet {


    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {


    }

    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {



        String nome=request.getParameter("nome");
        String toEmail=request.getParameter("email");
        int tel=Integer.parseInt(request.getParameter("tel"));
        String message=request.getParameter("mens");
        String fromEmail="artgio32@gmail.com";
        String pass="*****";


        EnviarMail mail=new EnviarMail();
        mail.enviar(message, fromEmail, toEmail, pass, nome);


        RequestDispatcher rd=request.getRequestDispatcher("confirm.jsp");
        rd.forward(request, response);

    }

    @Override
    public String getServletInfo() {
        return "Short description";
    }

}