It makes no difference for your network traffic, only SA 4.0 / trunk handles shortcircuiting and network lookups properly. But sure, marginal CPU savings..
On Thu, Nov 28, 2019 at 01:50:31PM +0100, Philipp Ewald wrote: > Hi Benny, > > thanks for your link! ( i did not follow any BOFH Rules from this site ;-) ) > > i check headers and if "X-SPam-Flag: YES" is set, i write a custom Header > from postfix. > > and in Spamassassin i search this custom header in shortcircuit. > > It works! > X-Spam-Status: Yes, score=98.7 tagged_above=-9999 required=5 > tests=[RCVD_IN_DNSWL_MED=-2.3, SHORTCIRCUIT=100, SpamFlag=1] > autolearn=disabled > > i set this priority lower then DNSWL so save some network traffic > > kind regards > Philipp > > > Am 27.11.19 um 18:30 schrieb Benny Pedersen: > >On 2019-11-27 17:56, Philipp Ewald wrote: > > > >>we only want to trust "X-Spam-Flag: YES" or why should someone > >>(spammer, other mailserver with outgoing spamfilter) set this Flag to > >>Yes? > > > >trustness > > > >https://www.techiepark.com/tutorials/blocking-spam-using-postfix-header_checks-and-spamassassin/ > > bad example on what not to do :) > > > >http://www.techiepark.com/resources/postfix-header-checks/ really want to > >make postfix a spam filter ? > > > >bettr is to use fuglu.org as a before queue content filter with then can > >reject spam :=) > > > >i have still not seen mimedefang working > > > > > > -- > Philipp Ewald > Administrator > > DigiOnline GmbH, Probsteigasse 15 - 19, 50670 Köln > Telefon: +49 221 6500-532, Fax: +49 221 6500-690, E-Mail: > philipp.ew...@digionline.de > > AG Köln HRB 27711, St.-Nr. 5215 5811 0640 > Geschäftsführer: Werner Grafenhain > > Informationen zum Datenschutz: www.digionline.de/ds