获取消息ID作为响应 - SendGrid API v3

I am getting this response when I submit an email, as I am working on the API of SendGrid I need to grab the stats of each mail i sent.. for that purpose I want the Message-ID in response so I could save that in db.. I have looked over the docs but unable to make any progress.. Thanks in Advance

P.S : does X-Message-Id could help in this ? if yes than how.. below is the url of doc from where we can retrive mails

https://sendgrid.api-docs.io/v3.0/email-activity/filter-all-messages

Array
(
    [0] => HTTP/1.1 202 Accepted
    [1] => Server: nginx
    [2] => Date: Tue, 27 Nov 2018 15:59:04 GMT
    [3] => Content-Type: text/plain; charset=utf-8
    [4] => Content-Length: 0
    [5] => Connection: keep-alive
    [6] => X-Message-Id: -ekBjiGXRNi7l5OdjBRcRA
    [7] => Access-Control-Allow-Origin: https://sendgrid.api-docs.io
    [8] => Access-Control-Allow-Methods: POST
    [9] => Access-Control-Allow-Headers: Authorization, Content-Type, On-behalf-of, x-sg-elas-acl
    [10] => Access-Control-Max-Age: 600
    [11] => X-No-CORS-Reason: https://sendgrid.com/docs/Classroom/Basics/API/cors.html
    [12] => 
    [13] => 
)

It is exactly what you're looking for. Use the X-Message-Id header.