>>> check dnslists = +defer_unknown : test.again.dns
>>> dnslists check: +defer_unknown
>>> dnslists check: test.again.dns
>>> check dnslists = +defer_unknown : test.again.dns
>>> dnslists check: +defer_unknown
>>> dnslists check: test.again.dns
>>> 1.0.0.V4NET.test.again.dns in dns_again_means_nonexist? no (option unset)
>>> dnslists: wrote cache entry, ttl=3600
LOG: DNS list lookup defer (probably timeout) for 1.0.0.V4NET.test.again.dns: returned DEFER
>>> 1.0.0.V4NET.test.again.dns in dns_again_means_nonexist? no (option unset)
>>> dnslists: wrote cache entry, ttl=3600
LOG: DNS list lookup defer (probably timeout) for 1.0.0.V4NET.test.again.dns: returned DEFER