#
exim -DSERVER=server -bd -oX PORT_D
****
-client 127.0.0.1 PORT_D 127.0.0.1
+client 127.0.0.1 PORT_D
??? 220
****
-client 127.0.0.1 PORT_D 127.0.0.1
+client 127.0.0.1 PORT_D
??? 220
quit
??? 221
****
-client 127.0.0.1 PORT_D 127.0.0.1
+client 127.0.0.1 PORT_D
??? 220
ehlo x.y.z
??? 250
quit
??? 221
****
-client 127.0.0.1 PORT_D 127.0.0.1
+client 127.0.0.1 PORT_D
??? 220
ehlo x.y.z
??? 250