Chain Queries

A chain query is a series of LDAP queries that AsyncOS runs in succession. AsyncOS runs each query in the series each query in the “chain” until the LDAP server returns a positive response or the final query returns a negative response or fails. Chain queries can be useful if entries in LDAP directories use different attributes to store similar (or the same) values. For example, departments in an organization might use different types of LDAP directories. The IT department might use OpenLDAP while the Sales department uses Active Directory. To ensure that queries run against both types of LDAP directories, you can use chain queries.

To use a chain query to control end-user access or notifications for the spam quarantine, complete the following steps:

Procedure

Step 1

Create an LDAP server profile for each query you want to use in the chain queries. For each of the server profiles, configure the queries you want to use for a chain query. For more information, see Creating the LDAP Server Profile.

Step 2

Create the chain query and designate it as an active query for the spam quarantine. For more information, see Creating a Chain Query.

Step 3

Enable LDAP end-user access or spam notifications for the spam quarantine. For more information about the spam quarantine, see Setting Up the Centralized Spam Quarantine.