The raw e-mail in pastebin returns a non-well-formed Message-ID. I attach a photo of what I see.
Sent from ProtonMail Mobile On Tue, Oct 24, 2017 at 10:05 PM, John Hardin <jhar...@impsec.org> wrote: > On Tue, 24 Oct 2017, Rupert Gallagher wrote: > Easy one. The Message-ID is > not well formed / RFC compliant. We reject such junk upfront. How so? That > looks totally valid to me... < dot-atom-text @ dot-atom-text > The line break > between the header and the ID is unusual, but not invalid. That might > potentially be a usable spam sign. @gmail.com> > @sn1pr0601mb1616.namprd06.prod.outlook.com>
