A sample header for the 'software2' Bronze account.

headers.txt

Received: by 10.216.248.138 with SMTP id v10csp285697wer;
        Tue, 27 Aug 2013 01:38:56 -0700 (PDT)
X-Received: by 10.182.88.202 with SMTP id bi10mr953674obb.91.1377592736225;
        Tue, 27 Aug 2013 01:38:56 -0700 (PDT)
Return-Path: <[email protected]>
Received: from o5.b99.sendgrid.net (o5.b99.sendgrid.net. [74.63.236.162])
        by mx.google.com with SMTP id t6si5898479oei.18.1969.12.31.16.00.00;
        Tue, 27 Aug 2013 01:38:56 -0700 (PDT)
Received-SPF: pass (google.com: domain of [email protected] designates 74.63.236.162 as permitted sender) client-ip=74.63.236.162;
Authentication-Results: mx.google.com;
       spf=pass (google.com: domain of [email protected] designates 74.63.236.162 as permitted sender) smtp.mail=bounces+236416-e7b6-sendgrid.tests=gmail.com@sendgrid.info;
       dkim=pass [email protected]
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sendgrid.me; h=
  content-type:mime-version:from:to:subject:x-feedback-id; s=
	smtpapi; bh=dOF0RiakOh6NToUp3Y/YA/G/fkg=; b=mLDEOk1SvDGD3re0FCEw
	ALsUNFXWdYAc2p9lr/yl/6jd5y4Ni+pEOxq3iR/GqFH8FPb+w6cxrzUJXXBA5Vry
	39FT8dDkJViuPEG126CSUn+cRD+kCdTkqASeDYs+QWadzLUej67gQCz1pZet+Vvb
	NW7YA6kq4fONFRtaN78wxVQ=
Received: by  with SMTP id mf60.20526.521C659F4
        Tue, 27 Aug 2013 08:38:55 +0000 (GMT)
Received: from MjM2NDE2 (174.37.77.208-static.reverse.softlayer.com [174.37.77.208])
	by mi17.sendgrid.net (SG) with HTTP id 140beecf5c2.47f4.23e99b
	for <[email protected]>; Tue, 27 Aug 2013 08:38:55 +0000 (UTC)
Content-Type: multipart/alternative;
	boundary="===============4591734838299754067=="
MIME-Version: 1.0
From: [email protected]
To: [email protected]