Cisco Cisco Email Security Appliance X1050 Guía Del Usuario
26-19
User Guide for AsyncOS 9.8 for Cisco Email Security Appliances
Chapter 26 LDAP Queries
Using Acceptance Queries For Recipient Validation
Using Acceptance Queries For Recipient Validation
You can use your existing LDAP infrastructure to define how the recipient email address of incoming
messages (on an public listener) should be handled. Changes to user data in your directories are updated
the next time the appliance queries the directory server. You can specify the size of the caches and the
amount of time the appliance stores the data it retrieves.
messages (on an public listener) should be handled. Changes to user data in your directories are updated
the next time the appliance queries the directory server. You can specify the size of the caches and the
amount of time the appliance stores the data it retrieves.
Note
You may wish to bypass LDAP acceptance queries for special recipients (such as
administrator@example.com
). You can configure this setting from the Recipient Access Table (RAT).
For information about configuring this setting, see the “Configuring the Gateway to Receive Email”
chapter.
chapter.
Related Topics
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Sample Acceptance Queries
shows sample acceptance queries.
You can also validate on the username (Left Hand Side). This is useful if your directory does not contain
all the domains you accept mail for. Set the Accept query to (uid={u}).
all the domains you accept mail for. Set the Accept query to (uid={u}).
Table 26-2
Example LDAP Query Strings for Common LDAP Implementations: Acceptance
Query for:
Recipient validation
OpenLDAP
(mailLocalAddress={a})
(mail={a})
(mailAlternateAddress={a})
Microsoft Active Directory Address Book
Microsoft Exchange
(|(mail={a})(proxyAddresses=smtp:{a}))
SunONE Directory Server
(mail={a})
(mailAlternateAddress={a})
(mailEquivalentAddress={a})
(mailForwardingAddress={a})
(mailRoutingAddress={a})
Lotus Notes
Lotus Domino
Lotus Domino
(|(|(mail={a})(uid={u}))(cn={u}))
(|(ShortName={u})(InternetAddress={a})(FullNa
me={u}))