RE: Message-ID Header - is it essential for proper email flow?

  • From: "John Tolmachoff \(Lists\)" <johnlist@xxxxxxxxxxxxxxxxxxx>
  • To: "'[ExchangeList]'" <exchangelist@xxxxxxxxxxxxx>
  • Date: Thu, 9 Sep 2004 15:12:53 -0700

> > Yes, Outlook 2003 removed it. That has caused problems.
> >
> > Invalid/missing Message-ID is/can be used as part of spam weighting.
> Kind of a grey area here.

Tis why it is used as part (small at that) of a weighting system.

John Tolmachoff
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