1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
# callout with no transport need_ipv4 # server PORT_S 220 Welcome HELO 250 Hi MAIL FROM 250 OK RCPT TO 550 unrouteable address QUIT 221 Bye **** exim -bs mail from:<unknown@x.x.x.x> rcpt to:<unknown@u.u.u.u> quit ****