spf-discuss
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Re: Attacking the throwaway-domain problem

2003-10-15 08:32:37
On Wed, Oct 15, 2003 at 10:13:21AM -0500, wayne wrote:

In the case of
multiple hops, you either need to trust your upstream, or the upstream
must use the Sender Rewrite System to change the envelope-from.

Using Sender Rewrite doesn't mean the recipient doesn't have to
trust you.  They still have to trust you, since you can put
anything in a sender rewrite, providing the stuff after the
final @ checks out in SPF.

The techniques that spammers can easily use to get around graylisting are
stopped by SPF

Please explain.

-- 
Erik Corry erik(_at_)arbat(_dot_)com
A: Because it messes up the order in which people normally read text.
Q: Why is top-replying such a bad thing?
A: Top-replying.
Q: What is the most annoying thing in email?

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