Cisco Cisco Email Security Appliance C160 Mode D'Emploi

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Chapter 3      LDAP Queries
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Cisco IronPort AsyncOS 7.1 for Email Advanced Configuration Guide
OL-22164-02
Acceptance (Recipient Validation) Queries
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 IronPort appliance 
queries the directory server. You can specify the size of the caches and the amount 
of time the IronPort 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 
“Configuring the Gateway to Receive Email” in the Cisco IronPort AsyncOS for 
Email Configuration Guide
.
Sample Acceptance Queries
 shows sample acceptance queries.
Table 3-2
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
(|(|(mail={a})(uid={u}))(cn={u}))
(|(ShortName={u})(InternetAddress={a})(FullNa
me={u}))