I would like to wrap up the discussion on DNS loads, because I'm getting
as tired of it as you are. I don't think we will ever come to a
I've asked for the "Council"'s input, since they have pretty much
invented SPF, and they will be defending it in front of IETF when they
go to ask for standardization.
I cannot believe that in one month they did not choose to show any opinion.
As it stands, some of you do not agree with my proposal to limit the
number of DNS queries to 10 lookups. I think some do agree. Some even
mentioned it would be nice if it could be made smaller than 10 even.
As far as I can tell, here are the facts that were established. Please
correct me if I'm wrong, but let's not make another 1000-message long
thread of this:
- no disagreement that a clear limit must be specified.
- no disagreement that the limit should be a simple number (on
number of DNS queries), instead of a multi-variable forumula.
- no disagreement that all clients should use the same limit.
- no disagreement that the limit should be lower than the current 111
- general consensus puts the desired limit between 10-20 queries.
- there was minor resistance to having a global limit (per domain) as
opposed to a per-TXT record limit (recursive/pyramid like).
I think the majority consensus is for 1 global limit.
- no disagreement that IP4 and IP6 mechanisms should be preferred to
other mechs that involve DNS lookups.
- suggestions that a "Best Practices"/recommendations document
should be written. Some text was even offered for some