Google Apps Directory Sync for Postini Services Administration Guide - Manual (Page 36)

Configuration 39
Alternate Offices
The company has two other offices with separate LDAP servers. The three offices
have intermingled org structures, but all orgs in the other two offices are labeled
as “Dubai” or “London” in the org name in the Administration Console.
• Type: Postini Org
• Match Type: Regular Expression
• Exclusion Rule: [Dubai|London]
LDAP Settings
The LDAP Settings section configures how the directory sync utility connects to
your LDAP directory server and generates your LDAP user list for comparison.
You may need to collect information from your LDAP directory server before you
can enter details in this section.