Exim version x.yz ....
configuration file is TESTSUITE/test-config
admin user
LOG: smtp_connection MAIN
  SMTP connection from CALLER
using ACL "acl_rcpt"
processing "accept"
check control = cutthrough_delivery
check verify = recipient
----------- end verify ------------
accept: condition test succeeded in ACL "acl_rcpt"
----------- start cutthrough setup ------------
Connecting to 127.0.0.1 [127.0.0.1]:1224 from ip4.ip4.ip4.ip4 ... connected
  SMTP<< 220 ESMTP
  SMTP>> EHLO myhost.test.ex
  SMTP<< 250 OK
  SMTP>> MAIL FROM:<CALLER@myhost.test.ex>
  SMTP<< 250 Sender OK
  SMTP>> RCPT TO:<userx@domain.com>
  SMTP<< 250 Recipient OK
----------- end cutthrough setup ------------
processing "accept"
accept: condition test succeeded in inline ACL
  SMTP>> DATA
  SMTP<< 354 Send data
  SMTP>>(nl)
  SMTP>> .
  SMTP<< 250 OK
LOG: MAIN
  >> userx@domain.com R=all T=smtp H=127.0.0.1 [127.0.0.1] C="250 OK"
created log directory TESTSUITE/spool/log
  SMTP>> QUIT
----------- cutthrough shutdown (delivered) ------------
LOG: MAIN
  <= CALLER@myhost.test.ex U=CALLER P=local-esmtp S=sss
LOG: MAIN
  Completed
LOG: smtp_connection MAIN
  SMTP connection from CALLER closed by QUIT
>>>>>>>>>>>>>>>> Exim pid=pppp terminating with rc=0 >>>>>>>>>>>>>>>>