Michael McCallister: > Hi, > > Does postscreen_dnsbl_ttl apply to nxdomain responses as well? For > example, lets assume an IP lookup on zen.spamhaus.org returns nxdomain > and postscreen_dnsbl_ttl is set to an hour - postscreen won't check > again for another hour? Or does that caching only apply to non-nxdomain > responses.
postscreen_dnsbl_ttl (default: 1h) The amount of time that postscreen(8) will use the result from a suc- cessful DNS blocklist test. During this time, the client IP address is ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ excluded from this test. ^^^^^^^^^^^^^^^^^^^^^^^^^^^ Wietse