If I cast my mind back, the reason such diagnostic data was put into a
Received: header was solely because Exchange-5.0 had a tendency to
remove all non-standard headers.
However, I think it would be easier and more correct to stop using a
Received: header and make it a X-Qmail-Scanner-Diagnostics
qmail-scanner inserts his own header creating incomplete redundant
information (it doesn't show authentication information).
it inserts
Received: from 1.1.1.1 (user1@domain.local@1.1.1.1) by
firstmailserver (envelope-from , uid 201) with
qmail-scanner-2.05st
in front of qmail's received header
Re
