From: Anthony Howe (achowe+postfix-userssnert.com)
Date: Sun Jul 30 2006 - 01:48:33 CDT

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/dev/rob0 wrote:
> 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.

milter-gris (and I believe Dreyfus's milter-greylist) applies
grey-listing during the SMTP RCPT TO: command. milter-gris is a pre-DATA
milter. With the milter API it would be possible to defer those checks
until the DATA command (before the message body) and return something
other than 354, but for grey-listing its not commonly done unless you
want to do some special white-listing semantics based on the whole list
of recipients rather than the individuals.

--
Anthony C Howe Skype: SirWumpus SnertSoft
+33 6 11 89 73 78 AIM: SirWumpus Sendmail Milter Solutions
http://www.snert.com/ ICQ: 7116561 http://www.snertsoft.com/

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