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Re: Case-sensitive?

2004-04-12 18:29:38
In <8057256(_at_)pamho(_dot_)net> "Roger Moser" 
<Roger(_dot_)Moser(_at_)pamho(_dot_)net> writes:

It it not explicitely mentioned in the specification but I assume that the
version string (v=spf1), the mechanism names, and the modifier names are
case-sensitive. Is it like this?

According to the SPF adoption rolls, there aren't too many times where
people have used uppercase instead of lowercase for mechanisms.  One
such example is hollandcasino.net, where they use "MX"  (They also use
the undefined mechanism "report").

The results that I have found are:

Both the PHP SPF implementation on infinitepenguins.org and libspf-alt
require the mechanisms to be lower case.

It appears that libspf ignore both the "MX" and "report" mechanisms.

The perl Mail::SPF::Query implementation appears to convert all
mechanisms to lower case, but preserves the case of the options.


This example is found in the SPF Test system on
http://www.midwestcs.com/spf/tests/



I do not have strong opinions about how this should work, but I think
it would be better if the SPF spec was clear on the issue.  Since the
SPF spec is silent on the issue of case, I have interpreted it to mean
that it is case sensitive.


-wayne


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