{% if postfix.postscreen | default(False) %}
# postscreen config
-postscreen_dnsbl_threshold = 2
+postscreen_dnsbl_threshold = 3
postscreen_dnsbl_whitelist_threshold = -2
postscreen_dnsbl_sites =
ix.dnsbl.manitu.net*2 sbl-xbl.spamhaus.org*2 truncate.gbudb.net*2