Still want to use fetchmail with qmail

[Alexandre Gonçalves Jacarandá]

Hi again!!!
I follow some tips, but I can get fetchmail working with qmail. But now 
I will give more details...
I installed qmail following Life with qmail and it's working.
I configured Mailbox delivery in my system and I've ISP that use 
sendmail and when I tried to fetch mail mails this error occurs:
client/server synchronization error.
My fetchmailrc is:

# Configuration created Sun May 20 18:04:12 2001 by fetchmailconf
set postmaster "alex"
set bouncemail
set properties ""
poll pop3.superonda.com.br with proto POP3
      user 'clark_vr' there with password 'xxxxxx' is alex here options 
forcecr dropdelivered warnings 3600
   antispam 571 550 501 554
Thanks, Alexandre Gonçalves Jacarandá