sdbgrey


This program is a greylisting policy server for postfix. It is
based on greylist.pl from the postfix distribution. It requires
mysql and libsdb with mysql support.

The database parameters are set at the top of the script in the
variable database_url. To use the default settings, type in mysql:

create database greylist;
grant all privileges on greylist.* to 'postfix'@'localhost' identified by 'postfix';
use greylist;
create table greylist (
greykey varchar(255) unique not null,
greyvalue integer not null default 0);


To run this from /etc/postfix/master.cf:

policy  unix  -       n       n       -       -       spawn
  user=nobody argv=/usr/libexec/postfix/sdbgrey

To use this from Postfix SMTPD, use in /etc/postfix/main.cf:

smtpd_recipient_restrictions =
   ...
   reject_unauth_destination
   check_policy_service unix:private/policy
   ...

To test this script by hand, execute:

sdbgrey -v


On Solaris, use this configuration in master.cf:

127.0.0.1:9998     inet  n       n       n       -       0       spawn
  user=nobody argv=/usr/libexec/postfix/sdbgrey

And this in main.cf:

smtpd_recipient_restrictions =
        permit_mynetworks
        reject_unauth_destination
        check_policy_service inet:127.0.0.1:9998

127.0.0.1:9998_time_limit = 3600
sdbgrey