spam trace noboady at hostname

[SACHIN]

HI,


I am facing problem to trace spammer. whenever i check logs or email queue it was shoing following thing.
exim log id nobody@hostname sending email address yahoo or hotmail or remote domain.

I am not sure how to trace such spammers....

 

[SACHIN]

nobody spam

HI,


As per this thread when i try to enable login i am facing different problem here.
http://forums.cpanel.net/showthread.php?t=50186&highlight=extended+logging


if i try to edit exim using whm
1)login into whm
2)click on exim configuration editor
3)advance editor
i can see log_selecter option
when i check exim.conf file at backend or using ssh i am unable to see log_selector option
what could be the reason?


Thank you,