Dkim fails with Altbody

[ghost]

I don't what i am doing wrong, but with simple body it pass, but if i add Altbody it says

dkim=neutral (body hash did not verify) header.i=@;

in gmail and in outlook says only "FAIL"
Here is my code.

$mail = new PHPMailer();
$mail->isSMTP();
$mail->SMTPDebug = 0;
$mail->Mailer = 'smtp';
$mail->Debugoutput = 'error_log';
$mail->SMTPSecure = 'tls';
$mail->Host = "smtp.live.com";
$mail->Port = 587;
$mail->SMTPAuth = true;
$mail->Username = "web@mydomain.com";
$mail->Password = "Password";
$mail->CharSet='UTF-8';
$mail->Encoding = 'quoted-printable';
$mail->setFrom('web@mydomain.com', 'First Last');
$mail->addReplyTo('web@mydomain.com', 'First Last');
$mail->addAddress($em, $na);
$mail->Subject = $subject.'';
$mail->AddEmbeddedImage("/images/mail/facebook-mail.png",'facebook-mail','facebook-mail.png');      // attachment
$mail->AddEmbeddedImage("/images/mail/gplus-mail.png",'gplus-mail','gplus-mail.png'); // attachment
$mail->AddEmbeddedImage("/images/mail/twitter-mail.png",'twitter-mail','twitter-mail.png'); // attachment
$mail->AddEmbeddedImage("/images/mail/back3v7[V].png",'back3v7','back3v7[V].png'); // attachment
$mail->AddEmbeddedImage("/images/mail/mails_landscape_footer.jpg",'mails_landscape_footer','mails_landscape_footer.jpg'); // attachment
$mail->Body=$html;
//=========
$mail->AltBody=$Althtml //if I disable this, it pass
//=========
$mail->DKIM_domain = 'mydomain';
$mail->DKIM_private = '/path/to/thekey.key';
$mail->DKIM_selector = 'keyselect';
$mail->DKIM_passphrase = 'password';
 if (!$mail->send()) {
    echo "Error: " . $mail->ErrorInfo;
} else {
   return true;
}
}

Can someone help me? What I am doing wrong?

[tixeunem]

Someone managed to solve this problem?

[Synchro]

Please retest with 6.0 and reopen if it's still a problem.