On 2019-06-19 04:01, Nicolas Kovacs wrote: > Hi, > > I have a working installation of Postfix and Dovecot that works nicely. > I've added SpamAssassin, which does a good job of flagging spam. Now I > wanted to add greylisting to my server. > > Here's what I did. > > $ sudo yum install postgrey > > Increase the greylisting delay. > > # /etc/sysconfig/postgrey > POSTGREY_OPTS="--delay=300" > > Edit /etc/postfix/main.cf accordingly. > > smtpd_recipient_restrictions = > permit_mynetworks, > permit_auth_destination, > permit_sasl_authenticated, > check_policy_service unix:/var/spool/postfix/postgrey/socket, > reject > > Start/restart services. > > $ sudo systemctl enable postgrey > $ sudo systemctl start postgrey > $ sudo systemctl restart postfix > > Now Postgrey seems to be running OK. > > $ systemctl status postgrey > ● postgrey.service - Postfix Greylisting Service > Loaded: loaded (/usr/lib/systemd/system/postgrey.service; enabled; > vendor preset: disabled) > Active: active (running) since mer. 2019-06-19 09:39:04 CEST; 19min > ago > Docs: man:postgrey(8) > Process: 5228 ExecStart=/usr/sbin/postgrey > --unix=/var/spool/postfix/postgrey/socket > --pidfile=/var/run/postgrey.pid --group=postgrey --user=postgrey > --greylist-text=Greylisted for %%s seconds --daemonize $POSTGREY_OPTS > (code=exited, status=0/SUCCESS) > Process: 5225 ExecStartPre=/bin/rm -f /var/run/postgrey.pid > (code=exited, status=0/SUCCESS) > Main PID: 5229 (/usr/sbin/postg) > CGroup: /system.slice/postgrey.service > └─5229 /usr/sbin/postgrey > --unix=/var/spool/postfix/postgrey/socket --pidfile=/var/run/p... > > juin 19 09:39:03 sd-100246 systemd[1]: Starting Postfix Greylisting > Service... > juin 19 09:39:04 sd-100246 postgrey[5229]: Process Backgrounded > juin 19 09:39:04 sd-100246 postgrey[5229]: 2019/06/19-09:39:04 postgrey > (type Net::Server::Multi...29) > juin 19 09:39:04 sd-100246 postgrey[5229]: Binding to UNIX socket file > "/var/spool/postfix/postg...et" > juin 19 09:39:04 sd-100246 postgrey[5229]: Setting gid to "238 238" > juin 19 09:39:04 sd-100246 systemd[1]: Started Postfix Greylisting > Service. > juin 19 09:39:04 sd-100246 postgrey[5229]: Setting uid to "994" > > The only problem is that there's no greylisting. I tried to send mails > from various mail servers to this machine. Everything gets delivered > immediately, and there's no greylisting action in /var/log/maillog. Did you include this line: postgrey unix - n n - - /var/spool/postfix/postgrey/socket in your /etc/postix/master.cf file? -- Mike Burger http://www.bubbanfriends.org "It's always suicide-mission this, save-the-planet that. No one ever just stops by to say 'hi' anymore." --Colonel Jack O'Neill, SG1