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Re: Trust (was: SPF is fundamentally broken)

From: Alex van den Bogaerdt (alexergens.op.het.net)
Date: Thu Jan 15 2004 - 07:07:37 CST


On Thu, Jan 15, 2004 at 01:36:09PM +0100, Erwan David wrote:

> at wrok I'm on domain B
>
> During my holydays I use a .forward to a mailbox in C

So, mail is delivered to you, and you decide to resend it.

> Someone in A writes to me at B, what should happen ?
>
> With your scheme, maiol is lost because C refuses it.

No, C refuses mail because A does not allow B to impersonate A
and because C is setup to refuse, not tag.

You have a problem with A and with C, not with SPF.

Why should "Someone in A" suffer from mistakes made by you,
the end user, or by domain "C", where the message was not sent?

Suppose A has a good reason not to exchange mail with C,
why should _you_ instruct C to send bounces to A?

cheers,
Alex
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