SMTP connection error when sending email using Phpmailer

Question

I’m trying to implement email sending with the library Phpmailer, but brought me the following mistakes:

Edit: I’m testing it locally.

SMTP -> ERROR: Failed to connect to server: Uma tentativa de conexão falhou porque o componente conectado não respondeu corretamente após um período de tempo ou a conexão estabelecida falhou porque o host conectado não respondeu. (10060)
SMTP Error: Could not connect to SMTP host.

Edit 2: Follows part of var_dump() of the object with error related messages

 private 'language' => 
    array (size=13)
      'provide_address' => string 'You must provide at least one recipient email address.' (length=54)
      'mailer_not_supported' => string ' mailer is not supported.' (length=25)
      'execute' => string 'Could not execute: ' (length=19)
      'instantiate' => string 'Could not instantiate mail function.' (length=36)
      'authenticate' => string 'SMTP Error: Could not authenticate.' (length=35)
      'from_failed' => string 'The following From address failed: ' (length=35)
      'recipients_failed' => string 'SMTP Error: The following recipients failed: ' (length=45)
      'data_not_accepted' => string 'SMTP Error: Data not accepted.' (length=30)
      'connect_host' => string 'SMTP Error: Could not connect to SMTP host.' (length=43)
      'file_access' => string 'Could not access file: ' (length=23)
      'file_open' => string 'File Error: Could not open file: ' (length=33)
      'encoding' => string 'Unknown encoding: ' (length=18)
      'signing' => string 'Signing Error: ' (length=15)

Below follows my shipping code:

$email = new PHPMailer();

$email->IsSMTP();
$email->SMTPSecure = "ssl"; // tbm já tentei tls
$email->Port = 587; // tbm já tentei 465 e tbm sem porta nenhuma
$email->SMTPDebug = 1;
$email->Host = "smtp.gmail.com";    
$email->SMTPAuth = true;
$email->Username = "[email protected]";
$email->Password = "minhaSenha";
$email->From = $para;

$email->SetLanguage("en", "../biblioteca/phpmailer/language/");
$email->CharSet = "UTF-8";
$email->FromName = $nome_remetente;
$email->Subject = $assunto;
$email->IsHtml(true);
$email->AddAddress($para);
$email->Body = $msg;

if(!$email->send()){
    //return false;
    die(var_dump($email->ErrorInfo));
} else {
    return true;
}

Answer 1

EDIT: Awaiting OP return after chat chat

First the gmail port is 465 and not 587

To use PHP Mailer with gmail you must do it this way

$mail= new PHPMailer;
$mail->IsSMTP();        // Ativar SMTP
$mail->SMTPDebug = false;       // Debugar: 1 = erros e mensagens, 2 = mensagens apenas
$mail->SMTPAuth = true;     // Autenticação ativada
$mail->SMTPSecure = 'ssl';  // SSL REQUERIDO pelo GMail
$mail->Host = 'smtp.gmail.com'; // SMTP utilizado
$mail->Port = 465; 
$mail->Username = 'seu email';
$mail->Password = 'sua senha';
$mail->SetFrom('seu email', 'seu nome(ou qualquer coisa que quiser)');
$mail->addAddress('email do destinatario','qualquer coisa que quiser');
$mail->Subject=("Assunto");
$mail->msgHTML("Sua mensagem");
if ($mail->send()){
    $ok = true;
}else{
    $ok = false;
}  

This is the code I use for gmail smtp and has always worked...

Answer 2

Since the end of last year (2014) Google requires a more secure authentication mechanism (Xoauth2) on various services. This includes Gmail.

This may be the error you are getting. To make it work you should enable the option "Allow less secure applications to access your account".

Login to your account and access the address: https://www.google.com/settings/security/lesssecureapps

You can get more information on this link: https://support.google.com/mail/answer/78754

Answer 3

In the end, the problem was on account of the Server of the company that was blocking in some way. admin pulled the strings on the server and worked.

Answer 4

Change the door to 587 and the connection to ssl

<?php
  header('Content-Type: text/html; charset=UTF-8');

//======================================================================
// CONFIGURAÇÕES DE ENVIO
//======================================================================
      $dispatcher       = array(
        "smtp_prefix"   => "smtp", //Apenas o prefixo, ex: smtp, caso: smtp.dominio.com.br
        "port"          => "587",
        "subject"       => "assunto_email", //Assunto do e-mail
        "from"          => "[email protected]", //Email remetente
        "from_name"     => "seu_nome", //Nome do remetente
        "from_password" => "sua_senha", //Senha rementente
        "to"            => "email_destinario"); //Destinatario


//======================================================================
// CORPO DO EMAIL
//======================================================================

  $message = 'Essa mensagem é um email de teste, caso tenha recebido está tudo ok!';

//======================================================================
// [FIM] CORPO DO EMAIL
//======================================================================



  include_once("./phpmailer/class.phpmailer.php");
  $mail = new PHPMailer();
  $mail->IsSMTP();
  $mail->SMTPSecure = 'ssl';    // SSL REQUERIDO pelo GMail
  $mail->Host = "{$dispatcher["smtp_prefix"]}.".substr(strstr($dispatcher["from"], '@'), 1);
  $mail->SMTPDebug = 0; // 1 = erros e mensagens || 2 = apenas mensagens
  $mail->SMTPAuth = true;
  $mail->Port = $dispatcher["port"];
  $mail->Username = $dispatcher["from"];
  $mail->Password = $dispatcher["from_password"];

  $mail->SetFrom($dispatcher["from"], $dispatcher["from_name"]);
  $mail->Subject = $dispatcher["subject"];
  $mail->MsgHTML($message);
  $mail->AddAddress($dispatcher["to"]);
  $mail->CharSet="UTF-8";

  if(!$mail->Send()) {
    $mensagemRetorno = 'Erro ao enviar e-mail: '. print($mail->ErrorInfo);
  } else {
    //Exemplo resposta usando JavaScript
    $sucesso = '<script> document.write("E-mail enviado com sucesso!"); </script>';
    echo $sucesso;
  }

?>

Information about door 587:

Services like Gmail, Yahoo! and Hotmail will be affected? There will be changes only for those who use email reader programs, those who use these services via Webmail need not change the configuration. All these email providers already offer the submission service on the port 587/TCP. Source: Antispam.BR