[Meta] Description=Postfix SMTP Socket [Socket] ListenStream=53333 ListenFIFO=/tmp/systemd-postfix-fifo ExecStartPre=/bin/echo "About to create sockets..." ExecStartPre=/bin/echo "About to create sockets... 2" ExecStartPost=/bin/echo "Created sockets..." ExecStopPre=/bin/echo "About to delete sockets..." ExecStopPost=/bin/echo "Deleted sockets..." ExecStopPost=/bin/echo "Deleted sockets... 2" #BindToDevice=eth0