[Fedora-directory-users] sendmail and fds

[basile]

hi
our mail users are now in a fedora directory  it works fine except :

i have this errors in logs

Jul  4 13:08:22 sorbon sm-mta[21182]: [ID 293258 mail.error] libsldap: 
Status: 91  Mesg: Error 0
Jul  4 13:08:22 sorbon last message repeated 1 time
Jul  4 13:08:22 xxx sm-mta[21182]: [ID 293258 mail.error] libsldap: 
Status: 7  Mesg: Session error no available conn.
Jul  4 13:08:22 xxx sm-mta[21182]: [ID 293258 mail.error] libsldap: 
Status: 91  Mesg: No such file or directory
Jul  4 13:08:22 xxx last message repeated 1 time
Jul  4 13:08:22 xxx sm-mta[21182]: [ID 293258 mail.error] libsldap: 
Status: 7  Mesg: Session error no available conn.

and i have a thunderbird on xp which cannot send mail ( xp , thunderbird 
1.5.0.4 )
but with another instance of thunderbird ( same version on xp all works 
fine )
that is very strange

if someone have any idea or experience , because we are now in production
thanks
basile