From: "Horst von Brand" <[email protected]>
jdow <[email protected]> wrote:
[...]
Greylist those who have not subscribed.
That is not easy to do.
Somebody needs to write the code to make it easy to do for a list
server. It should not be hard to do.
Let their email server try
again in 30 minutes. For those who are not subscribed it should not
matter if their message is delayed 30 minutes. And so far spammers
never try again.
Wrong. Greylisting does stop an immense amount of spam here, but a lot
comes through.
So if it's not perfect it's not worth doing at all, eh? Yet you think
SPF, which is FAR less suited as a spam preventative, is a single
point solution. Double think was supposed to have come and gone in
1984, I thought.
{^_^}
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