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Re: Bug#207300: tmda: Challenge-response is fundamentally broken



On Sat, Aug 30, 2003 at 05:26:59PM -0700, Steve Lamb wrote:
> On Sat, 30 Aug 2003 23:49:40 +0000
> Brian May <bam@debian.org> wrote:
> > 1. The modular design of SMTP agents like postfix do not allow 
> > scanning of messages before the message has been accepted by the
> > MTA at the SMTP session. I think you would have to add hooks
> > into smtpd, but that is going to complicate the code.

>     Well, that's postfix's problem.  After years of hearing how modular is the
> superior method it is kind of ironic that a simple solution is complicated.

I don't see any reason why postfix couldn't be readily adapted to
support hooks to external program checks, if it really doesn't support
them already.  You can do just about any other kind of check you want to
at any point in the receiving process, external program checks shouldn't
be all that hard to add.

-- 
Steve Langasek
postmodern programmer

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