Sendmail and SunOne Directory Server

Hi All,

I am trying to implement LDAP integration for Sendmail. Currently we
use SunOne Directory Server 5.2 for user authentication. Do I need to
modify the schema?

There are few classes, like sendmailMTA, sendmailMTAAlias,
sendmailMTAAliasObject that are mentioned in Sendmail readme files.
Can I modify the query instead? Is there way to find out what type of
information the Sendmail expect from this query?

Thanks,

Ivan