spf-discuss
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Re: Sendmail white paper

2004-11-22 13:54:39
In <200411222040(_dot_)IAMKE7AM035712(_at_)asarian-host(_dot_)net> Mark 
<admin(_at_)asarian-host(_dot_)net> writes:

[mailto:owner-spf-discuss(_at_)v2(_dot_)listbox(_dot_)com] On Behalf Of 
David Woodhouse

On Mon, 2004-11-22 at 12:51 +0000, Mark wrote:

If it had an SPF "fail" when I first received it, I will not forward
it either, of course.

So you throw away mail which is potentially valid, which may have been
forwarded by a forwarder which doesn't do SRS.

When you put it like that, it sounds like it is "my" decision; but it is
really that of the domain owner.

It *IS* your decision.  Your system, your rules.  You choose your
Receiver Policies.  The domain owner chooses their Sender Policies.
It is your choice if you reject email that fails to pass the sender's
policies.


records is sufficiently confident about the manner in which mail for his
domain is going to be relayed. Those considerations, and ensuing decision
about his SPF record, lies squarely with him. If he is not certain of
things, he should not ask me to "fail" then. But if he does, I do.

Forwarding relationships are set up by the receiver, not the sender.
You, as a receiver, have far better methods for learning about
forwarding relationships.  The sender has almost no way of knowing
when, if ever, they will send email to an address that gets forwarded.



-wayne


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