LOG: no host name found for IP address 1.2.3.4
>>> host in dsn_advertise_hosts? no (option unset)
>>> host in pipelining_advertise_hosts? yes (matched "*")
+>>> host in chunking_advertise_hosts? no (end of list)
>>> using ACL "ar"
>>> processing "warn"
>>> check control = cutthrough_delivery
LOG: no host name found for IP address 1.2.3.4
>>> host in dsn_advertise_hosts? no (option unset)
>>> host in pipelining_advertise_hosts? yes (matched "*")
+>>> host in chunking_advertise_hosts? no (end of list)
>>> using ACL "ar"
>>> processing "warn"
>>> check control = cutthrough_delivery
>>> SMTP<< 220 server ready
>>> 127.0.0.1 in hosts_avoid_esmtp? no (option unset)
>>> SMTP>> EHLO myhost.test.ex
+>>> cmd buf flush 21 bytes
>>> SMTP<< 250 OK
>>> 127.0.0.1 in hosts_require_auth? no (option unset)
>>> SMTP>> MAIL FROM:<CALLER@myhost.test.ex>
+>>> cmd buf flush 37 bytes
>>> SMTP<< 250 OK
>>> SMTP>> RCPT TO:<verify@domain.com>
+>>> cmd buf flush 29 bytes
>>> SMTP<< 250 OK
>>> holding verify callout open for cutthrough delivery
>>> ----------- end verify ------------
>>> accept: condition test succeeded in ACL "ar"
>>> end of ACL "ar": ACCEPT
>>> SMTP>> QUIT
+>>> SMTP(close)>>
>>> ----------- cutthrough shutdown (host-checking mode) ------------
LOG: 10HmaY-0005vi-00 <= CALLER@myhost.test.ex H=(myhost.test.ex) [1.2.3.4] P=esmtp S=sss for verify@domain.com