Failed to send email with phpmailer

Question

I use the PHPMAILER on another site of mine where it is working perfectly. However, that same code does not allow me to send emails, it gives Sucesso and no error appears. I used the code $mail->SMTPDebug = 2; and I can find no mistake there.

Here’s the code

require 'mail/PHPMailerAutoload.php';
    $mail = new PHPMailer();
    $mail->IsSMTP();   
    $mail->SMTPDebug = 2;  
    $mail->Host = "servidor";  //nome do servidor está oculto
    $mail->Port = 587;
    $mail->SMTPAuth = false;
    $mail->CharSet="utf-8";

    $mail->From = "email1";
    $mail->FromName = "Nome1";
    $mail->AddAddress("email2");
    $mail->IsHTML(true);

    $mail->Subject = "Taasd";
    $mail->Body    = $titulo;

    if(!$mail->Send()){
       echo "<script>console.log('".$mail->ErrorInfo."')</script>";
       exit;
    }else{
        echo "<script>console.log('Sucesso')</script>";
    } 

Answer 1

Today are rare the servers that send without authentication. If your really accepted, would be port 25.

If you do not accept, you will have to set the user and password.

Example of structure and debug:

Failed to read a. php file (lib Phpmailer)