Why all emails sent with phpmailer go to spam box on gmail?
<p>My Code:</p>

<pre><code>include("PHPMailer/class.phpmailer.php");

$php_mailer = new PHPMailer();
$php_mailer-&gt;IsSMTP();
$php_mailer-&gt;SMTPAuth = true;
$php_mailer-&gt;Host = 'xxxxxx';
$php_mailer-&gt;Port = '25';
$php_mailer-&gt;Username = 'xxxxxx@xxxxxx.com.br';
$php_mailer-&gt;Password = 'xxxxxx';   
$php_mailer-&gt;From = 'xxxxxx@xxxxxx.com.br';
$php_mailer-&gt;FromName = 'xxxxxx';
$php_mailer-&gt;Sender = 'xxxxxx@xxxxxx.com.br';
$php_mailer-&gt;AddReplyTo('xxxxxx@xxxxxx.com.br','xxxxxx');
$php_mailer-&gt;Subject = "xxxxxx";
$php_mailer-&gt;IsHTML(true);
$php_mailer-&gt;Body = "xxxxxx";
$php_mailer-&gt;AddAddress("xxxxxx@gmail.com");
$php_mailer-&gt;Send();
</code></pre>

<p>but it always go to spam box on gmail.</p>

<p>my dedicated server is not blacklisted, i already checked it.</p>

<p>maybe i forget some headers.</p>

<p>please help me!</p>
