I received some spam on gmail and I am wondering if I can fully trust the received time that gmail is displaying. Can the spammer tamper with that at all or is that attached to the headers by the gmail servers?
Edit, adding header:
Delivered-To: email@example.com Received: by 10.49.116.82 with SMTP id ju18csp15039qeb; Wed, 3 Apr 2013 22:21:51 -0700 (PDT) X-Received: by 10.60.92.201 with SMTP id co9mr2614742oeb.113.1365052911350; Wed, 03 Apr 2013 22:21:51 -0700 (PDT) Return-Path: Received: from submasaf.com ([2607:f9d8:ea:123f::]) by mx.google.com with ESMTP id of9si6430954obb.7.2013.04.03.22.21.51; Wed, 03 Apr 2013 22:21:51 -0700 (PDT)
These time stamps can't be forged/influenced right? These are stamps from the receiving machines (google)?