[Dovecot] dovecot lda works with maildir++ but does not enforce the quota?

[Antonio Casado Rodríguez]

Hi all,

I use Dovecot lda. Is there the possibility that dovecot lda works with 
maildir++ but does not enforce the quota?

I have dovecot 1.0rc12, postfix, RedHat Enterprise Linux ES 4.0 
Update 4. IMAP client Thunderbird 1.5.0.7

Only namespace:
namespace private {
  separator = /
  inbox = yes
  prefix =
  location = maildir:~/Maildir/
}

Thanks a lot.