log from Perl
├──expanding: ${perl{log_write}{log from Perl}}
╰─────result: Wrote log
->>>>>>>>>>>>>>>> Exim pid=pppp (fresh-exec) terminating with rc=0 >>>>>>>>>>>>>>>>
+>>>>>>>>>>>>>>>> Exim pid=p1235 (fresh-exec) terminating with rc=0 >>>>>>>>>>>>>>>>
LOG: smtp_connection MAIN
SMTP connection from CALLER
LOG: MAIN