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Re: [mail-vet-discuss] Re: Auth-Results issues? #7 section 4.1

2006-04-27 21:42:05
Hi Murray,
At 12:43 27-04-2006, Murray S. Kucherawy wrote:
In section 4:

"For security reasons, an MTA SHOULD remove ..."

Shouldn't that be:

"For security reasons, an MTA MUST remove any discovered instance"

The draft mentions "If an MTA applies any authentication test, it MUST add this header" and the removal should be a MUST as well.

Modified text for Section 4:

   For security reasons, an MTA MUST remove any discovered instance of
   this header for which the "hostname" is its own, i.e. headers which
   claim to be from the MTA but were added before the mail arrived at
   the MTA for processing.  A border MTA MAY also delete any discovered
   instance of this header which claims to have been added within its
   trust boundary.  For example, a border MTA at mx.example.com MUST
   delete any instance of this header claiming to come from mx.exam-
   ple.com and MAY delete any instance of this header claiming to come
   from any host in example.com prior to adding its own headers.  This
   applies in both directions so that hosts outside the domain cannot
   claim results MUAs inside the domain might trust.

Regards,
-sm
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