SPF PASS in gmail body/FAIL in google postmaster

I'm using a third party ESP for sending mail and have configured my domain www.styleupdates.co for including the SPF records from them. The third party emailer shows our SPF records alright, emails sent to gmail also show SPF PASS in the body. But in the google postaster tool, the SPF authentication for my domain mails is failing.

As shown in the pic above – DKIM is validated but not SPF.

mail-tester.com results

I've also attached an image of the result we got from mail-tester by sending a mail. Mail-tester shows SPF & DKIM ok but not DMARC. Other authentications also look alright. So DKIM & SPF records do exist for our domain name.

Header Screenshot of the mail headers below –

Attaching header of the mail I'm having issue with

Delivered-To: reciever@gmail.com
Received: by 10.37.128.144 with SMTP id n16csp204841ybk;
Mon, 22 May 2017 03:09:59 -0700 (PDT)
X-Received: by 10.223.153.181 with SMTP id y50mr10793028wrb.41.1495447799437;
        Mon, 22 May 2017 03:09:59 -0700 (PDT)
ARC-Seal: i=1; a=rsa-sha256; t=1495447799; cv=none;
        d=google.com; s=arc-20160816;
        b=jR65lEEdRaQ4M2xmeNxaCBq/c+5d1KbvQ4CSQUzdtsaZVS7ZBYFarG2b3FEsR8uINB
         5xvJy/DKVjgqfBHLSRNtAef4puwfZJwWTOXktWSf0/a9oIWx2bh3wGsyT/Yjglk7Zrq2
         TSFS7xDAAGtQsv4+jJ/pO/JMfoH5abq+YyXdS3buxZ7J6ilQwfpLKH+ayrwR/jiGl1Ec
         598e4X6H449qVOItmGrb8Dq5SFiIJWQheWYiMEEXrSTVknzlZe0E1F+k+xsEQEnnbiif
         szmml5vbYulRP/fdc6WYUP4z3yQxj3n6uMj9lDBPBqIhaOUayV2yMmp/bh3LoMsg5ZZc
         T+Ug==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816;
        h=content-transfer-encoding:precedence:list-unsubscribe:list-id:date
         :subject:to:reply-to:from:mime-version:message-id
         :domainkey-signature:dkim-signature:arc-authentication-results;
        bh=raKzdgPcSVRNwNmew4PEt+UNx4UiRM1tL8RVngiKXV0=;
        b=k4XnFTCDquva32Z0YVVcIzV5sYuvWoyw8tDo+4g0mKxZPa+kQsXljEd3wb5bjzvmEi
         aZUBjZTQOWY/TLYpKEdzqaE8a6yP8QpxD0M52uhZA/j9GD2VaP0cLhbT68NRC1czS/3B
         F/ofJXnxoU3266eNxliLYb8qdCdCvMZwW/ml1n6+buoOvZHAzGNOLtTW9yAT5XqOZMQX
         IQ53gF7QUpvLVZL7kvLZ6uxVweSoeSiXh9Yh7JhOvTFAtnxslhiG6FVJlAXz2P1vK5vP
         LQp1AJjVk5AthpPDntyQKGSO54gK/JaoXXaZnDERqBc6iG2uTeykLZJIcCrZHbpkvBQ2
         UIcg==
ARC-Authentication-Results: i=1; mx.google.com;
       dkim=pass header.i=@styleupdates.co;
       spf=pass (google.com: domain of b8449512.aesaaghgqumaaaajkycaaaajii8aaaaakreaaaoaaahstqbzirj5@xyz.espdomain.com designates XX.XXX.233.167 as permitted sender) smtp.mailfrom=b8449512.AEsAAGhGquMAAAAJkycAAAAJiI8AAAAAKREAAAOAAAhstQBZIrj5@xyz.espdomain.com;
       dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=styleupdates.co
Return-Path: <b8449512.AEsAAGhGquMAAAAJkycAAAAJiI8AAAAAKREAAAOAAAhstQBZIrj5@xyz.espdomain.com>
Received: from o167.p8.mailjet.com (o167.p8.mailjet.com. [XX.XXX.233.167])
        by mx.google.com with ESMTPS id g7si94075wrg.68.2017.05.22.03.09.59
        for <reciever@gmail.com>
        (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);
        Mon, 22 May 2017 03:09:59 -0700 (PDT)
Received-SPF: pass (google.com: domain of b8449512.aesaaghgqumaaaajkycaaaajii8aaaaakreaaaoaaahstqbzirj5@xyz.espdomain.com designates XX.XXX.233.167 as permitted sender) client-ip=XX.XXX.233.167;
Authentication-Results: mx.google.com;
       dkim=pass header.i=@styleupdates.co;
       spf=pass (google.com: domain of b8449512.aesaaghgqumaaaajkycaaaajii8aaaaakreaaaoaaahstqbzirj5@xyz.espdomain.com designates XX.XXX.233.167 as permitted sender) smtp.mailfrom=b8449512.AEsAAGhGquMAAAAJkycAAAAJiI8AAAAAKREAAAOAAAhstQBZIrj5@xyz.espdomain.com;
       dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=styleupdates.co
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/simple; q=dns/txt;
  d=styleupdates.co; i=only@styleupdates.co; s=mailjet;
  h=domainkey-signature:message-id:mime-version:from:reply-to:to:subject:date:list-id:list-unsubscribe:
  precedence:x-csa-complaints:x-feedback-id:x-mj-mid:content-type:content-transfer-encoding;
  bh=9ccfNUbYCGFDKDbtTKzdcPmYng0=;
  b=sh2iXOwf6u7CICMFgWSMdLN+w8iN+yzy5tYugLKxqJPiQIuLCPirfYdJZ HK855coki37OUnP0S0y6LTGZhkS5SlfnN29kmqigU9PTYzB21MWSz5MRwO74 OHmrr99eCTnWXELxZw7uzJXF63V4Z96RTRyWhXIgnuyOUQtXl9Z3cU=
DomainKey-Signature: a=rsa-sha1; c=simple; q=dns;
  d=styleupdates.co; s=mailjet;
  h=message-id:mime-version:from:reply-to:to:subject:date:list-id:list-unsubscribe:
  precedence:x-csa-complaints:x-feedback-id:x-mj-mid:content-type:content-transfer-encoding;
  b=FKzkLJqnzLlfTTA4dN0czHSIl0xWbDQ3XhfJjbPjl/fhFAqfoIfT1NK6F XlTn8zScoH6nPgXVBiWJOXbFTpPqm5gpcFjfDuvAFyY/E5c/uhPzHugP7+tH LZV/eaXjxGsgrCYfHYuVTzIB+Ak2/Xp6v0JgDokvJ7yiyV+9ra6eaM=
Message-Id: <b8449512.AEsAAGhGquMAAAAJkycAAAAJiI8AAAAAKREAAAOAAAhstQBZIrj5@mailjet.com>
MIME-Version: 1.0
From: Sender <Sender@styleupdates.co>
Reply-To: sender @styleupdates.co
To: reciever@gmail.com
Subject: interesting Subject
Date: Mon, 22 May 2017 10:10:01 +0000
List-Id: <sender.styleupdates.co.xxxx.xx>
List-Unsubscribe: <mailto:xxxxxx@xyz.espdomain.com>
Precedence: bulk
X-CSA-Complaints: whitelist-complaints@eco.de
X-Feedback-Id: XXXXXXXXX:XX
X-XX-Mid: AEsAAGhGquM XXXXXXXXX XXXXXXXXX XXXXXXXXX AAAOAAAhstQBZIrj5k16OnCF1Tvabc3vSUVRKJwAIAgU
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: quoted-printable