https://refer.telnyx.com/refer/zrfmo

incomingsms (email forwarding)

<?php
$to = "your@email.com ";
$subject = "Text Message from {$_REQUEST['From']} to {$_REQUEST['To']}";
$message = "{$_REQUEST['Body']}";
$headers = "From: telnyx@yourdomain.com ";
mail($to, $subject, $message, $headers);