Scott Kitterman wrote:
I say again, how many currently valid sender policies do you think it's OK
to break?
Hi Scott,
I think breaking 5% of valid working policies (counting only those
without loops of syntax errors) would be OK.
If SPF had standard status, I would probably say 0.5% breakages, and I
could even see a valid argument for 0.1%, depending on how major the
problem to be fixed was.
But it is a draft, ie, work in progress. Everyone who uses beta software
knows that they might have to upgrade as the bugs are worked out. SPF is
like that I think.
A few years ago, open mail relay were the norm. The standard did not
require them to be closed. And yet, everyone (100%) was required to
change their configurations and close their relays.
Write it up as the evolution of email. As long as we use email, it will
evolve. Sometimes it will affect more or fewer people.
How many do you think is ok to break?
Radu