On 24/05/2016 17:23, John Levine wrote:
Just as a matter of interest - wouldn't it be worth them using macros in
their includes? eg 'include:%{i4r}.spf.ebay.com'. This could cut down
drastically on the level of nesting.
Yuck. That feels really fragile.
Why?
Is it just that SPF macros aren't well implemented (despite them being a
key part of SPF), or something else?
It seems to me that this is exactly the reason that macros are
specifically allowed in include: mechanisms in RFC 7208.
A substantial proportion of the SPF checks our server does which include
the Google/Outlook.com/etc SPF records go over the 10 query limit, so
if/when people start failing on permerror results, it'll cause big issues.
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