php - Add category to send grid mail using web api
I'm Tracking my send grid mail activities. I want to add category to my mail headers. This is the code I used:
$params = array( 'api_user' => 'xxx', 'api_key' => 'xxxx', 'to' => $to, 'subject' => $subject, 'html' => $message, 'from' => $from, 'category' => 'news', ); $request = $url.'api/mail.send.json'; $session = curl_init($request); curl_setopt ($session, CURLOPT_POST, true); curl_setopt ($session, CURLOPT_POSTFIELDS, $params); curl_setopt($session, CURLOPT_HEADER, false); curl_setopt($session, CURLOPT_RETURNTRANSFER, true); $response = curl_exec($session); curl_close($session);
But the category (news) is not added in the send grid statistics. How can add category to mail. Please help me.
You need to pass categories as JSON to the x-smtpapi param rather than incuding it at the top level. Like so:
You can see another example of this in practice in the SendGrid Documentation. Additionally, here are the docs for all the things you can do with the X-SMTPAPI headers, and we also have a validator for those headers as well.