With the version 1.1.041518 and the package artica-postfix-smtp-relay-1.8 you are able to manage Greylisting with milter-greylist product.
You can find more informations here : http://hcpnet.free.fr/milter-greylist/#req
milter-greylist is a stand-alone milter written in C that implements the greylist filtering method, as proposed by Evan Harris.
Grey listing works by assuming that, unlike legitimate MTA, spam engines will not retry sending their junk mail on a temporary error. The filter will always reject mail temporarily on a first attempt, then accept it after some time has elapsed.
On the left menu, select Postfix/milter-greylist option.
Enable the "Enable Milter-greylist" in order to allow artica to add milter-greylist into postfix.
Be carrefull ,to enable milter-greylist in postfix, you need to Save & Apply Policies on Postfix after enable Milter-greylist.
Milter-greylist is set with rules defined like ACL, ACLs can be defined by DNSRBL, IP, email address.
By default, Artica propose to you a list of rules for examples and to help you to understand how it works.
You can Add yours ACLs by Clicking on the Add New Acl button with a dedicated wizard form that helps you to create a rule.
