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Re: What would happen to Challenge/Response if ...



On Fri, Oct 24, 2003 at 12:53:33AM -0700, Steve Lamb said
> Rob Weir wrote:
> > I'm dropping mail based on a DATA regexp.  I have the following line in
> > /etc/postfix/ms-crap
> 
>     Correct me if I'm wrong but doesn't the DATA regexp come after all the
> DATA is already across the wire?  There has been some matter of debate on that
> issue and the general consensus is that since the receiving MTA cannot
> interrupt the DATA stream for a 550 one has to wait until that stream is done
> before issuing it else run the risk of the other side sending it again.
> Generally speaking Postfix is quite anal about the letter of the law^H^H^HRFC
> so I'd presume it would wait until the DATA block is done.  If that is the
> case saying the MTA "never sees it" is a misonamor.  I has seen it, it has
> just rejected it.

Gah, I didn't think of that.  So I've still eaten a stupid amount of
traffic this week.  Does anyone have any neat scripts for automaticaly
blacklisting Swen-sending ips for a period of time with Postfix?

-- 
Rob Weir <rweir@ertius.org> | mlspam@ertius.org  |  Do I look like I want a CC?
Words of the day:   Maple Iraq Agfa Kh-11 PLO enigma advisors AGT. AMME SHA SRI

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