>>> check hosts = 1.2.3.4 : <; 1.2.3.4::5.6.7.8
LOG: unknown lookup type "<" in host list item "<; 1.2.3.4:5.6.7.8"
>>> host in "1.2.3.4 : <; 1.2.3.4::5.6.7.8"? list match deferred for <; 1.2.3.4:5.6.7.8
->>> deny: condition test deferred
+>>> deny: condition test deferred in ACL "a1"
LOG: H=[V4NET.0.0.0] F=<> temporarily rejected RCPT <a1@b>: unknown lookup type "<"
>>> using ACL "a2"
>>> processing "deny"
>>> check hosts = 1.2.3/24
>>> host in "1.2.3/24"? no (malformed IPv4 address or address mask)
->>> deny: condition test failed
+>>> deny: condition test failed in ACL "a2"
>>> end of ACL "a2": implicit DENY
LOG: H=[V4NET.0.0.0] F=<> rejected RCPT <a2@b>