LDAP status?

[kilburn]

If you just want postfix to be able to receive mails for users setup at an LDAP directory, it's just a matter of adjusting it's configuration (there are multiple postfix+ldap howtos out there).

Now, if you want ispcp to be able to create those users and store them inside ldap, this is going to be harder. Basically, you should adjust the postfix configuration (as in the previous case), and also modify the "engine/ispcp-mbox-mngr" so that it creates/edits/removes users from the ldap directory instead of using sasl...