qmail logging

[reach_prashant]

    hello friends 


   how can i log  everything handled by qmail-smtpd  , qmail-send
,qmail-qmqpd   and  auth_pop  for qmail-pop3d authentication failures  

     i am running qmail-smtpd under tcpserver also installed daemons tools 
 ,  but was't able to find  proper docs  on how to configure  ,
all these tools to get complete log related mail ativities 


    how can i restrict Max failed login attampts  to 3 , i am using
auth_pop  along with qmail_pop3d 


thanks and regards 
Prashant Desai