Erro ao enviar email

Ola, já pesquise no forum e no google e ainda não obtive solução para o meu problema. estou tentando enviar um email atraves da minha app android.
Porem não estou conseguindo e geralmente da o seguinte erro “Could not conect to SMTP host:smtp.gmail.com,port:465” quando Transport transport = session.getTransport("smtp"); e se eu coloco como “smtps” no try catch me retorna o erro “Null” vou postar o codigo pra exemplificar!

EnviarEmails.java

[code]public class EnviarEmails {

public boolean enviarEmailImap(String from, String toEmails[],String ccEmails[], String bccEmails[],String assunto, String mensagem,Session session) throws Exception {   
    Message msg = new MimeMessage(session);  
    InternetAddress addressFrom = new InternetAddress(from);  

    msg.setFrom(addressFrom);     

    InternetAddress[] addressTo = new InternetAddress[toEmails.length];     
    for (int i = 0; i < toEmails.length; i++){     
        addressTo[i] = new InternetAddress(toEmails[i]);     
    }           
    msg.setRecipients(Message.RecipientType.TO, addressTo);            

    if(ccEmails != null && ccEmails.length > 0){  
        InternetAddress[] endsCc = new InternetAddress[ccEmails.length];     
        for (int i = 0; i < ccEmails.length; i++){     
            endsCc[i] = new InternetAddress(ccEmails[i]);     

        }  
        msg.setRecipients(Message.RecipientType.CC, endsCc);  
    }  

    if(bccEmails != null && bccEmails.length > 0){  
        InternetAddress[] endsBCc = new InternetAddress[bccEmails.length];     
        for (int i = 0; i < bccEmails.length; i++){     
            endsBCc[i] = new InternetAddress(bccEmails[i]);     

        }  
        msg.setRecipients(Message.RecipientType.BCC, endsBCc);  
    }  
      
    MimeBodyPart anexo = new MimeBodyPart();  
   // FileDataSource source = new FileDataSource(Environment.getExternalStorageDirectory().getAbsolutePath() + "/acessofacil_license.txt");  
   // anexo.setDataHandler(new DataHandler(source));  
   // anexo.setFileName("acessofacil_license.txt");  
      
    MimeBodyPart messagePart = new MimeBodyPart();  
    messagePart.setContent(mensagem, "text/plain");  
      
    Multipart multi = new MimeMultipart();  
    multi.addBodyPart(messagePart);  
   // multi.addBodyPart(anexo);  
      
    msg.setSubject(assunto);             
    msg.setContent(multi);    

    msg.setFlag(Flags.Flag.SEEN, true);  
    
    //Transport.send(msg);
    Transport transport = session.getTransport("smtp");   
    transport.connect("smtp.gmail.com", 465,"srto.paulinhu@gmail.com", "xxxxx");  

    transport.sendMessage(msg, msg.getAllRecipients());     
    transport.close();   

    return true;   

}  

} [/code]

metodo na activity

[code] public void btnEnviarClick(View v){
//enviar email

	Properties props = new Properties();   
    props.put("mail.smtp.transport.protocol", "smtp");   
    props.put("mail.smtp.host", "smtp.gmail.com");   
    props.put("mail.smtp.auth", "true");   
    props.put("mail.smtp.port", "465");   
    props.put("mail.smtp.socketFactory.port", "465");   
    props.put("mail.smtp.socketFactory.class",   
            "javax.net.ssl.SSLSocketFactory");   
    props.put("mail.smtp.socketFactory.fallback", "false");   
    props.setProperty("mail.smtp.quitwait", "false");   
	   Session session = Session.getInstance(props,
			   new javax.mail.Authenticator() {  
           protected PasswordAuthentication getPasswordAuthentication() {  
               return new PasswordAuthentication("srto.paulinhu@gmail.com","xxxxx");
           }  
       }); 
		CtrlEmail cEmail = new CtrlEmail(this);
		Email email = new Email();
		Cursor cursor = cEmail.buscarTodos();
		if(cursor.moveToFirst()){
			email.setDescricao(cursor.getString(2));
			email.setSmtp(cursor.getString(3));
			email.setPortaSmtp((cursor.getInt(6)));
			email.setUsuario(cursor.getString(4));
			email.setSenha(cursor.getString(5));
		}
		//SendEmail sEmail = new SendEmail();
		//MailSender mSender = new MailSender(email.getUsuario(),email.getSenha());
		EnviarEmails em = new EnviarEmails();
		String[] to = new String[]{"srto.paulinhu@gmail.com"};
	    String[] vazio = new String[]{"srto.paulinhu@gmail.com"};
		try {
			
			em.enviarEmailImap("srto.paulinhu@gmail.com", to, vazio, vazio, "Teste venda", "... teste...",session );
			 Toast.makeText(getBaseContext(), "Email Enviado com Sucesso", Toast.LENGTH_LONG).show();
		} catch (Exception e) {
			Toast.makeText(getBaseContext(), "Erro ao enviar email " + e.getMessage(), Toast.LENGTH_SHORT).show();
		}
		
	
}[/code]

tbm tentei utilizar este codigo, que tbm esta me retornando null

[code]public class Mail extends javax.mail.Authenticator {
private String _user;
private String _pass;

private String[] _to;
private String _from;

private String _port;
private String _sport;

private String _host;

private String _subject;
private String _body;

private boolean _auth;

private boolean _debuggable;

private Multipart _multipart;

public Mail() {
_host = “smtp.gmail.com”; // default smtp server
_port = “465”; // default smtp port
_sport = “465”; // default socketfactory port

_user = ""; // username 
_pass = ""; // password 
_from = ""; // email sent from 
_subject = ""; // email subject 
_body = ""; // email body 

_debuggable = false; // debug mode on or off - default off 
_auth = true; // smtp authentication - default on 

_multipart = new MimeMultipart(); 

// There is something wrong with MailCap, javamail can not find a handler for the multipart/mixed part, so this bit needs to be added. 
MailcapCommandMap mc = (MailcapCommandMap) CommandMap.getDefaultCommandMap(); 
mc.addMailcap("text/html;; x-java-content-handler=com.sun.mail.handlers.text_html"); 
mc.addMailcap("text/xml;; x-java-content-handler=com.sun.mail.handlers.text_xml"); 
mc.addMailcap("text/plain;; x-java-content-handler=com.sun.mail.handlers.text_plain"); 
mc.addMailcap("multipart/*;; x-java-content-handler=com.sun.mail.handlers.multipart_mixed"); 
mc.addMailcap("message/rfc822;; x-java-content-handler=com.sun.mail.handlers.message_rfc822"); 
CommandMap.setDefaultCommandMap(mc); 

}

public Mail(String user, String pass) {
this();

_user = user; 
_pass = pass; 

}

public boolean send() throws Exception {
Properties props = _setProperties();

if(!_user.equals("") && !_pass.equals("") && _to.length > 0 && !_from.equals("") && !_subject.equals("") && !_body.equals("")) { 
  Session session = Session.getInstance(props, this); 

  MimeMessage msg = new MimeMessage(session); 

  msg.setFrom(new InternetAddress(_from)); 
   
  InternetAddress[] addressTo = new InternetAddress[_to.length]; 
  for (int i = 0; i < _to.length; i++) { 
    addressTo[i] = new InternetAddress(_to[i]); 
  } 
    msg.setRecipients(MimeMessage.RecipientType.TO, addressTo); 

  msg.setSubject(_subject); 
  msg.setSentDate(new Date()); 

  // setup message body 
  BodyPart messageBodyPart = new MimeBodyPart(); 
  messageBodyPart.setText(_body); 
  _multipart.addBodyPart(messageBodyPart); 

  // Put parts in message 
  msg.setContent(_multipart); 

  // send email 
  Transport.send(msg); 

  return true; 
} else { 
  return false; 
} 

}

public void addAttachment(String filename) throws Exception {
BodyPart messageBodyPart = new MimeBodyPart();
DataSource source = new FileDataSource(filename);
messageBodyPart.setDataHandler(new DataHandler(source));
messageBodyPart.setFileName(filename);

_multipart.addBodyPart(messageBodyPart); 

}

@Override
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(_user, _pass);
}

private Properties _setProperties() {
Properties props = new Properties();

props.put("mail.smtp.host", _host); 

if(_debuggable) { 
  props.put("mail.debug", "true"); 
} 

if(_auth) { 
  props.put("mail.smtp.auth", "true"); 
} 

props.put("mail.smtp.port", _port); 
props.put("mail.smtp.socketFactory.port", _sport); 
props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory"); 
props.put("mail.smtp.socketFactory.fallback", "false"); 

return props; 

}

// the getters and setters [/code]

P.s: os jars do additionnal,mail e activation estao no buildpath!

alguem pode me ajudar, pois desde ontem venho pesquisando e no que me parece para muitos esses codigos funcionaram, mais para mim não. alguem pode me ajudar?
Obrigado!

Cara, tenta olhar neste link:
http://www.guj.com.br/posts/list/297617.java#1582009

Postei uma classe simples lá, tenta usar ela pra ver se resolve.

Abraços.

Obtive o mesmo erro! :confused: