Good thing i have modified my exim.conf to do a lookup on every single username that attempts to send our box mail. Sorry ev1 we stopped your bloody spam!
2004-12-11 20:35:48 H=(ev1.net) [64.173.67.185] sender verify fail for
: response to "RCPT TO:" from inmail.ev1.net [207.218.192.49] was: 550 unknown user
2004-12-11 20:35:48 H=(ev1.net) [64.173.67.185] F= rejected RCPT : Sender verify failed
2004-12-11 20:35:49 unexpected disconnection while reading SMTP command from (ev1.net) [64.173.67.185]