SendGrid\Response Object
(
    [statusCode:protected] => 400
    [body:protected] => {"errors":[{"message":"The from object must be provided for every email send. It is an object that requires the email parameter, but may also contain a name parameter.  e.g. {\"email\" : \"example@example.com\"}  or {\"email\" : \"example@example.com\", \"name\" : \"Example Recipient\"}.","field":"from.email","help":"http://sendgrid.com/docs/API_Reference/Web_API_v3/Mail/errors.html#message.from"}]}
    [headers:protected] => Array
        (
            [0] => HTTP/1.1 400 Bad Request
            [1] => Server: nginx
            [2] => Date: Sat, 15 Jun 2019 19:31:55 GMT
            [3] => Content-Type: application/json
            [4] => Content-Length: 402
            [5] => Connection: keep-alive
            [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] => 
        )
)