public function addCustomHeader($headerName, $headerData)
{
if (!preg_match('/^h:/i', $headerName)) {
$headerName = 'h:' . $headerName;
}
$this->message[$headerName] = [$headerData];
return $this->message[$headerName];
}
/** * Append a custom MIME header to a message. * * @param string $key * @param string $value * * @return \Bogardo\Mailgun\Mail\Message */ public function header($key, $value) { $this->messageBuilder->addCustomHeader($key, $value); return $this; }