Exim version x.yz ....
configuration file is TESTSUITE/test-config
admin user
+dropping to exim gid; retaining priv uid
┌considering: ${perl{foo}{arg1}}
┌considering: foo}{arg1}}
├──expanding: foo
log from Perl
├──expanding: ${perl{log_write}{log from Perl}}
└─────result: Wrote log
->>>>>>>>>>>>>>>> Exim pid=pppp terminating with rc=0 >>>>>>>>>>>>>>>>
+>>>>>>>>>>>>>>>> Exim pid=pppp (main: expansion test) terminating with rc=0 >>>>>>>>>>>>>>>>
LOG: smtp_connection MAIN
SMTP connection from CALLER
LOG: MAIN
>>> host in pipelining_advertise_hosts? yes (matched "*")
>>> host in chunking_advertise_hosts? no (end of list)
>>> using ACL "check_rcpt"
->>> processing "accept"
+>>> processing "accept" (TESTSUITE/test-config 20)
LOG: this is a warning at TESTSUITE/aux-fixed/3000.pl line 25.
>>> check condition = ${if !eq {${perl{foo_warn}}}{}}
>>> = true