Ändra följande...
Kod:
if (mail($to, $message, $persnr, $adress, $postnr, $ort, $from, $tel, $bild, $antal, $format, $agree ,"From: $name <$from>"))
...till...
Kod:
if (mail($to, "From: $name <$from>", "$message, $persnr, $adress, $postnr, $ort, $from, $tel, $bild, $antal, $format, $agree"))