From: /dev/rob0 (rob0gmx.co.uk)
Date: Sat Jul 29 2006 - 16:06:36 CDT

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On Saturday 29 July 2006 15:26, Bruno S. Delbono wrote:
> * on the Sat, Jul 29, 2006 at 10:09:04PM +0200, Ralf Hildebrandt
> was tippering:
> > Ehm, you don't need a milter for greylisting. A policy daemon
> > suffices and it's much easier to setup, too, Also, it's been
> > available for years.
>
> *cough* ehm..I knew that :P..I just liked milters

Is there a way to have the milter run on RCPT TO, or does it always
wait until end-of-DATA? If the latter, a Postfix policy daemon is far
more efficient. A greylisting milter would receive the message DATA at
least twice, possibly more.

Greylisting is generally not Net-friendly, but it's not so bad (IMO of
course) when rejection occues at RCPT TO.

Disclaimer: I use greylisting (sqlgrey) myself, but I would not
recommend it for larger sites. And of course, please don't take this as
invitation to discuss the merits of greylisting, which is explicitly
off-topic here. I am merely referring to the merits of greylisting via
milter as opposed to the Postfix policy protocol.
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