presently gmail headers 2nd line needs deleting before submitting. Trouble is ISP's need FULL headers as evidence so paste deleted line in comments
Delivered-To: x
Received: by 2002:a9d:21b7:0:0:0:0:0 with SMTP id s52-v6csp2028874otb; DELETE
Sat, 28 Apr 2018 09:00:41 -0700 (PDT)