In Lotus Domino 5, the LDAP service converted a search base of country ("c=xx") to root ("") by default. This conversion accommodates releases of Microsoft Outlook Express earlier than 5.5, which supply a default country search base when users do not specify a search base. In Lotus Domino 5, you can use the NOTES.INI setting LDAP_CountryCheck=1 to prevent the LDAP service from making this conversion.
This setting is designed for use with pre-5.5 Microsoft Outlook Express clients which, when users don't specify a search, automatically use the country associated with the software version as a search base. Since it's likely that pre-5.5 users who don't specify a search base intend a root search rather than one using the client-supplied country search base, use this setting if the clients that use the LDAP service are primarily pre-5.5 Microsoft Outlook Express clients.
By default, the Domino 6 LDAP service does not convert a search base of country to root. Use the NOTES.INI setting LDAPPre55Outlook=1 to revert to the Domino 5 LDAP service behavior of converting a search base of country to root to accommodate releases of Microsoft Outlook Express earlier than 5.5. The LDAP_CountryCheck setting is obsolete in Lotus Domino 6.
This setting is new in ND6