authenticate LDAP to email server

[robert k Wild]

i edited "dovecot-ldap.conf.ext" and added the lines

hosts = 10.10.1.3
auth_bind = yes
auth_bind_userdn = cn=%u,cn=home,ou=robina_users,dc=robina,dc=private

i then edited "dovecot.conf" and added this line in

auth_username_format = %Lu

i edited "10-auth.conf" i unhashed the following line

!include auth-ldap.conf.ext - which contains my userdb and passwddb file

but when i try to create a new email account using thunderbird it cant find
the settings for my email account

any help please

rob