spf-discuss
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Re: Summary: Current state of SPF

2004-01-29 17:05:04
On Thu, Jan 29, 2004 at 07:05:19PM -0500, Mark Shewmaker wrote:
| > Mechanisms are evaluated token by token, but modifiers are slurped up at
| > start time and may affect the entire record.  I do not think people
| > should count on modifier ordering.
| 
| I relied on modifier ordering in my pgp=... example earlier today.  The
| example would be much larger rewritten in a position-independent manner.
| 
| (Note that I used "=" in the example to effectively get the same result
| as having an undefined mechanism that didn't cause an "unknown" result
| for strict clients that got to that point.)

Well, the existing defined modifiers are position-independent, but
people are free to propose new modifiers with new semantics, and
consenting clients are free to respect ordering when interpreting those
new modifiers.


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