ipaddress in ~control/badmailsfrom

[reach_prashant]

    hello friends 


     is it possble to specify ip's with/without wilcards  
 rather than FQDNs and domain names  in
~control/badmailfrom  files   ,

  if its possible how can i list ips in badmailsfrom  means will i have to
seperate it by ","  or by space or new entry goes on new lines, 


    thanks & regards 
  Prashant Desai