SendGrid\Response Object
(
    [statusCode:protected] => 202
    [body:protected] => 
    [decoded_body:protected] => 
    [headers:protected] => Array
        (
            [0] => HTTP/1.1 202 Accepted
            [1] => Server: nginx
            [2] => Date: Sun, 25 Oct 2020 10:41:44 GMT
            [3] => Content-Length: 0
            [4] => Connection: keep-alive
            [5] => X-Message-Id: -kbhUJ22SYGETKB1UW8AKg
            [6] => Access-Control-Allow-Origin: https://sendgrid.api-docs.io
            [7] => Access-Control-Allow-Methods: POST
            [8] => Access-Control-Allow-Headers: Authorization, Content-Type, On-behalf-of, x-sg-elas-acl
            [9] => Access-Control-Max-Age: 600
            [10] => X-No-CORS-Reason: https://sendgrid.com/docs/Classroom/Basics/API/cors.html
            [11] => 
            [12] => 
        )

)