* Bill Cole via mailop:

> Greeting pause has been such a perfect and cheap tool for decades that
> it is unimaginable that any sender could succeed while violating the
> rule that they must wait for a complete banner before sending any
> commands.

It amazes me how many attempts are made to this day to short circuit the
proper SMTP session handshake. Thankfully, Postfix does a great job of
weeding out a boatload of senders who are apparently convinced that the
rules do not apply to them. The Postscreen subsystem alone is worth more
to me than any greylisting I have used over the years (and don't use
anymore).

-Ralph
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