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271604RE: postscreen request: pcre support

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  • Mark Scholten
    Dec 1, 2010
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      > -----Original Message-----
      > From: owner-postfix-users@... [mailto:owner-postfix-
      > users@...] On Behalf Of Wietse Venema
      > Sent: Wednesday, December 01, 2010 4:41 PM
      > To: Postfix users
      > Subject: Re: postscreen request: pcre support
      > Jeroen Koekkoek:
      > > Hi,
      > >
      > > I would like to request pcre table support in postscreen for some
      > fields
      > > e.g. client_name, helo_name, etc.
      > >
      > > For example if client is not listed on any dnsbl, but the reverse
      > > hostname matches /\.dsl\./, the client is greylisted.
      > >
      > > Or if client is listed on a single dnsbl and contains something like
      > > dialup, the connection is dropped.
      > This functionality already exists in smtpd. There is no need to
      > duplicate
      > this in postscreen.

      Is it possible to use postscreen and give points for things and when it is
      between 2 values it is greylisted and if it is below the lowest value it is
      accepted and if it is above the highest value it is rejected? In that case
      it would be useful to have an option to have pcre table to give certain
      points. If you are listed in dnsbl X and you've a hostname that match
      /\.dsl\./ -> greylist, if you are only listed in dnsbl X -> accept, if you
      are listed in dnsbl X, you've a hostname that match /\.dsl\./ and are listed
      in dnsbl Y -> reject.

      Would something like that be possible with postfix/postscreen without using
      a milter?

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