trata solamente esto
Código PHP:
<?
$body="";
foreach($_POST as $key => $value) {
$body .= "<strong>$key:</strong> ".htmlspecialchars($value, ENT_QUOTES)."<br>";
}
$headers="From: $nombre <$email>\n";
$headers .= "X-Mailer:PHP/".phpversion()."\n";
$headers .= "Mime-Version: 1.0\n";
$headers .= "Content-Type: text/html";
$asunto = "Armado de Mesa";
$destinatarios = array("primeremail","segundoEmail","terceremail","cuarto","quinto","sexto");
for($i=0; $i<6; $i++){
mail($destinatarios[$i], "Asunto: $asunto", $body, $headers);
}
header("Location: Contacto-gracias.htm?enviado=true");
?>