Consulta sobre $name = $_FILES['attachment']...

[elsolodigno]

Disculpa estimado, no sé como agregarlo al mensaje..., a éste?:

//Message

$message = "--".$boundary."\n";
$message.="Content-Type: text/plain; charset=\"iso-8859-1\"\n";
$message.="Content-Transfer-Encoding: quoted-printable\n";
$message.="\n";
$message.="$yourmessage";
$message.="$nombadj";
$message.="$tamano1";
$message.="$cantidad1";
$message.="$papel1";
$message.="$tamano2";
$message.="$cantidad2";
$message.="$papel2";
$message.="$tamano3";
$message.="$cantidad3";
$message.="$papel3";
$message.="$tamano4";
$message.="$cantidad4";
$message.="$papel4";
$message.="$tamano5";
$message.="$cantidad5";
$message.="$papel5";
$message.="\n";