[Dovecot] lda quota

hello i am using dovecot-1.0.r7 on freebsd 5.4 everything is fine, but i wanna more -)

i am using dovecot-lda + plugin quota. when i am trying to send a email
for user with overquota i am getting "local delivery failed". can i make
some more informatic message for users like "your recipient box is
overquoted".

exim configure :

... dovecot_delivery: driver = pipe debug_print = "T: ldap_maildir_home for $local_part@$domain" command = /usr/local/libexec/dovecot/deliver -d $local_part message_prefix = message_suffix = user = mailnull group = mail delivery_date_add envelope_to_add return_path_add log_output ...

dovecot.conf

... protocol lda { mail_plugins = quota } ...

thanx

-- regards, Razorenov Alex