>>> check domains = @ : @[]
>>> [::1] in "@ : @[]"? yes (matched "@[]")
>>> require: condition test succeeded in ACL "acl_rcpt_1"
>>> processing "accept"
>>> accept: condition test succeeded in ACL "acl_rcpt_1"
>>> check domains = @ : @[]
>>> [::1] in "@ : @[]"? yes (matched "@[]")
>>> require: condition test succeeded in ACL "acl_rcpt_1"
>>> processing "accept"
>>> accept: condition test succeeded in ACL "acl_rcpt_1"