<?php
	$curl = curl_init();
	curl_setopt($curl, CURLOPT_URL, 'https://api.mailgun.net/v3/filebot.net/messages');
	curl_setopt($curl, CURLOPT_RESOLVE, ['api.mailgun.net:443:34.149.236.64']);
	curl_setopt($curl, CURLOPT_TIMEOUT, 10);
	curl_setopt($curl, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
	curl_setopt($curl, CURLOPT_USERPWD, $key);
	curl_setopt($curl, CURLOPT_POST, true);
	curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
	curl_setopt($curl, CURLOPT_POSTFIELDS, [
		'from'         => $from,
		'to'           => $to,
		'subject'      => $subject,
		'text'         => $text,
		'attachment'   => new CURLStringFile($attachment, $filename)
	]);

	$response = curl_exec($curl);
	$status = curl_getinfo($curl, CURLINFO_HTTP_CODE);

	if ($status != 200) {
		error_log('[MAILGUN] '.$status.' '.(curl_errno($curl) ? curl_error($curl) : $response));
	}

	curl_close($curl);
?>