How to define a schema file

[sam wun <sam.wun@authtec.com>]

Hi list,

I installed openldap22 in freebsd 5.4 and created slapd.conf need to 
include a users.schema file.
But I don't know how to define a schema file for it.
Here is some example schema files I would like to create:
â‘ kunmail.schemaï
kunmailuser: userName
userHome
userMaildir
userClearpw
âpostfix.schemaï
postfixAccountïmail
mailbox
clearPassword
homeDirectory
âmail.schemaï
mailUserï mail
userPassword
homeDirectory
mailMessageStore
âqmail.schemaï
qmailUserï mail
mailMessageStore
homeDirectory
userPassword

Are these correct form of creating a schema file used by slapd.conf?

Thanks
Sam