Exim4 & Socket

[Marco <marco4ever@libero.it>]

Hi all,
This is my custom  Exim4 router for check user quota:

maildir_overquota:
driver = redirect
domains = +local_domains
condition = ${if eq {${readsocket{/var/run/exim_sockd.sock}{QUOTACHECK 
${lookup ldap {LDAP_Q_HOMEDIRECTORY} {$value} fail} ${lookup ldap 
{LDAP_Q_QUOTA} {$value} fail} $message_size}{3s}{\n}{0}}}{0}{0}{1}}
allow_fail
data = :fail: Mailbox quota exceeded

Now I have change my external socket daemon for check user quota from 
file socket (/var/run/exim_sockd.sock) to "port socket (that listen on 
127.0.0.1 port 9221)
How to change in my router for use new socket?

Thanks

Marco