Cisco Cisco Email Security Appliance X1070 ユーザーガイド
Chapter 3 LDAP Queries
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Cisco IronPort AsyncOS 7.5 for Email Advanced Configuration Guide
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Sample Routing Queries
Routing: MAILHOST and MAILROUTINGADDRESS
For Routing queries, the value of MAILHOST cannot be an IP address; it must be
a resolvable hostname. This usually requires the use of an Internal DNSconfig.
a resolvable hostname. This usually requires the use of an Internal DNSconfig.
MAILHOST is optional for the routing query. MAILROUTINGADDRESS is
mandatory if MAILHOST is not set.
mandatory if MAILHOST is not set.
Masquerading
Masquerading is a feature that rewrites the Envelope Sender (also known as the
sender, or MAIL FROM) and the To:, From:, and/or CC: headers on email based
on queries you construct. A typical example implementation of this feature is
“Virtual Domains,” which allows you to host multiple domains from a single site.
Another typical implementation is “hiding” your network infrastructure by
“stripping” the subdomains from strings in email headers.
sender, or MAIL FROM) and the To:, From:, and/or CC: headers on email based
on queries you construct. A typical example implementation of this feature is
“Virtual Domains,” which allows you to host multiple domains from a single site.
Another typical implementation is “hiding” your network infrastructure by
“stripping” the subdomains from strings in email headers.
Table 3-3
Example LDAP Query Strings for Common LDAP Implementations: Routing
Query for:
Route to another mailhost
OpenLDAP
(mailLocalAddress={a})
Microsoft Active Directory Address Book
Microsoft Exchange
May not be applicable
a
a.Active Directory implementations can have multiple entries for the
proxyAddresses
attribute, but
because AD formats this attribute value as
smtp:user@domain.com
, that data cannot be used for LDAP
routing/alias expansion. Each target address must be in a separate
attribute:value
pair. Microsoft
Exchange environments that are aware of each other within the infrastructure can usually route mail
between each other without involving a route back to the originating MTA.
between each other without involving a route back to the originating MTA.
SunONE Directory Server
(mail={a})
(mailForwardingAddress={a})
(mailEquivalentAddress={a})
(mailRoutingAddress={a})
(otherMailbox={a})
(rfc822Mailbox={a})