On Friday March 19, mengwong(_at_)dumbo(_dot_)pobox(_dot_)com wrote:
On Fri, Mar 19, 2004 at 05:24:25PM -0500, Stuart D. Gathman wrote:
| Also, when SPF returns 'none', should I
| check smaller right hand sides? E.g. check mx.aol.com, then aol.com
| (which would pass).
|
We've been thinking about this. Some thinking is at:
http://spf.pobox.com/faq.html#demon
But maybe we want to allow ancestor search for a record with a
match_subdomains=yes modifier.
Would it make sense to take the following approach:
If there is no SPF record for the domain, but there are MX records,
choose an MX record with minimal priority and look for an SPF record
at that domain.
I think this would do the right thing all the time, and makes it a lot
easier to manage SPF records.
NeilBrown