Alex van den Bogaerdt <mailto:alex(_at_)ergens(_dot_)op(_dot_)het(_dot_)net>
wrote on Sunday,
January 14, 2007 6:31 PM -0600:
On Sun, Jan 14, 2007 at 06:19:03PM -0600, Seth Goodman wrote:
If I understand you correctly, you are suggesting that implicit "a"
means to imply "+a" for every SPF record. If so, it would then be
hard to say that a domain sends no mail since the implied "+a" in
Just like with the implicit MX, there is often no host that has the
identical name as the domain _and_ is authorized to send mail.
you forgot the part where I said: "... for HELO ...":
This assume the hostname of the outbound relay is identical to the
domain name, which is not usually true when there is more than one host.
What's more, this is not something anyone would reasonably expect, and
that's enough reason to avoid these kind of defaults. We can do
anything we want and tell people to RTFM when they fail. It's much
better to have it be boringly obvious (rather than obviously boring) so
people get it right quickly without a lot of headaches.
--
Seth Goodman
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