+[reject rcpt]
+log 1 pass = May 8 08:26:55 mail postfix/postscreen[22055]: NOQUEUE: reject: RCPT from [157.122.148.242]:47407: 550 5.7.1 Service unavailable; client [157.122.148.242] blocked using bl.spamcop.net; from=<kos@mafia.network>, to=<z13699753428@vip.163.com>, proto=ESMTP, helo=<XL-20160217QQJV>
+
+rule = 3306
+alert = 6
+decoder = postfix-reject
+
+[domain not found]
+log 1 pass = Jun 18 20:59:29 mybox postfix/postscreen[12181]: NOQUEUE: reject: RCPT from [213.158.187.41]:45263: 450 4.3.2 Service currently unavailable; from=<purchase@otherfolks.com>, to=<media@example.com>, proto=ESMTP, helo=<some.box.net>
+
+rule = 3303
+alert = 5
+decoder = postfix-reject
+