* Chris <xchris...@googlemail.com>:
> Hello Postfix Users :)
> 
> I noticed:
> 
> http://www.postfix.org/POSTSCREEN_README.html#after_220
> 
> > When a good client passes the deep protocol tests, postscreen(8) adds
> > the client to the temporary whitelist but it cannot hand off the
> > "live" connection to a Postfix SMTP server process in the middle of
> > the session. Instead, postscreen(8) defers mail delivery attempts with
> > a 4XX status, logs the helo/sender/recipient information, and waits
> > for the client to disconnect.
> 
> This is greylisting...and i hate greylisting... Is it possible to
> disable this postscreen greylisting function? In my point of view this
> is not RFC compliant. Greylisting delays mail traffic.

Technically not possible.
 
> If I have five incoming mx records running postfix with postscreen...
> and each time the sender receives a 4xx error ... This is
> unacceptable.

If you let the MX share one memcache instance, the second MX to
receive a connection will immediately accept it. Works like a charm
here.

-- 
Ralf Hildebrandt
  Geschäftsbereich IT | Abteilung Netzwerk
  Charité - Universitätsmedizin Berlin
  Campus Benjamin Franklin
  Hindenburgdamm 30 | D-12203 Berlin
  Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962
  ralf.hildebra...@charite.de | http://www.charite.de
            

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