[exim] Email not delivery

Hi All,

i'm test sending email from console :
echo "Test mail" |mail -s "example" somebody@my_mx_backup.com
echo "Test mail" |mail -s "example" rednux@???

#exim log

2006-05-22 22:48:32 1FiNsm-0005BI-Dx <= foo@??? U=foo P=local S=344
2006-05-22 22:48:32 1FiNsm-0005BI-Dx => somebody
<somebody@my_mx_backup.com> R=virtual_user T=virtual_userdelivery
2006-05-22 22:48:32 1FiNsm-0005BI-Dx Completed
2006-05-22 22:48:16 1FiNsW-00057n-Qt <= foo@??? U=foo P=local S=3
2006-05-22 22:48:17 1FiNsW-00057n-Qt => rednux@??? R=lookuphost
T=remote_smtp H=gmail-smtp-in.l.google.com [64.233.163.27]
2006-05-22 22:48:17 1FiNsW-00057n-Qt Completed


if somebody@my_mx_backup.com send to foo@??? email is
delivery and send to rednux@???..is work..
but i'm check inbox somebody@my_mx_backup.com nothing email ?
let me know