# smtp client "interface" option, $transport_name and $router_name need_ipv4 # server PORT_S 220 ESMTP EHLO 250-OK 250-HELP 250 AUTH LOGIN MAIL FROM: 250 Sender OK RCPT TO: 250 Recipient OK DATA 354 Send data . 250 OK QUIT 250 OK **** exim -d-all+transport -odi userx@domain.com . ****