On Tue, Feb 19, 2013 at 10:15 AM, Daniel Shahaf <d...@daniel.shahaf.name> wrote: > Peelman, Nick wrote on Tue, Feb 19, 2013 at 13:13:28 -0500: >> Adds a Date header and a Message-ID with the revision property embedded at >> the end. > > Why is this necessary? Can you describe a setup in which Date or > Message-ID are not added? (I assume usually the MTA would add them if > they're missing...?)
He's probably scoring outbound mail for spam and the lack of the Message-ID and Date are considered spammy.