The two directories must contain the same users and groups, and when i add a user on ldapserver off.company.nl it also has to be automativcally create the user on the second ldapserver mail.company.nl. i use openldap 2.3.32 on off.company.nl and 2.2.24 on mail.company.nl
Sorry but your openldap-Vesions are 2.3.32 and 2.2.24 ? If this is true - your solution works with slurp.
By luis