[exim] ldap auth problem

Hello all :)

I have a small problem with ldap_auth and quote_ldap :
Work fine but when I have a dn with accents like : dn: cn=Toto Dés,......
The authentification fails

Here my config :
cram:
driver = cram_md5
public_name = CRAM-MD5
server_secret = ${if ldapauth { \

user="cn=${quote_ldap:$1},br=Internal,o=Eurofer,c=be" \
                                  pass="$2" \

ldap://ldap.eurofer.be/br=Internal,o=Eurofer,c=be?userPassword?one?(%26(cn=${quote_ldap:$1})) 
\
                                 } \
                                 {yes} {no} \
                    }
   server_set_id = $1

Guy