SMTP connection from CALLER
LOG: MAIN
<= CALLER@myhost.test.ex U=CALLER P=local-smtp S=sss
-delivering 10HmaX-0005vi-00
-Connecting to 127.0.0.1 [127.0.0.1]:PORT_S ... connected
+delivering 10HmaX-000000005vi-0000
+Connecting to 127.0.0.1 [127.0.0.1]:PORT_S ...
+connected
SMTP<< 220 Welcome
SMTP>> EHLO myhost.test.ex
SMTP<< 250 Hi