Cisco Cisco Email Security Appliance C650 Guía Del Usuario
22-15
Cisco AsyncOS 8.5 for Email User Guide
Chapter 22 Configuring Routing and Delivery Features
Configuring Masquerading
Figure 22-2
Alias Tables Defined for the Appliance
Configuring 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 processed by a listener according to a table that 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. The Masquerading feature
is available for both private and public listeners.
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. The Masquerading feature
is available for both private and public listeners.
Ethernet interface: Data 2
IP interface: PublicNet (e.g. 192.168.2.1)
Public Listener: InboundMail
SMTP
IronPort Email
Security appliance
Private Listener: OutboundMail
The Alias Table feature was
configured to create the following
aliases:
configured to create the following
aliases:
admin:
administrator@example.com
[ example.com ]
customercare: bob@example.com,
frank@example.com,
sally@example.com
Note that alias tables apply to all
email traveling through (received by)
the appliance, from both private and
public listeners.
email traveling through (received by)
the appliance, from both private and
public listeners.
Ethernet interface: Data 1
IP interface: PrivateNet (e.g. 192.168.1.1)
Host Access Table (HAT):
WHITELIST: $TRUSTED
BLACKLIST: $BLOCKED
SUSPECTLIST: $THROTTLED
UNKNOWNLIST: $ACCEPTED
spamdomain.com REJECT
.spamdomain.com REJECT
251.192.1. TCPREFUSE
169.254.10.10 RELAY
ALL: $ACCEPTED
Recipient Access Table (RAT):
Host Access Table (HAT):
RELAYLIST: $RELAYED
ALL: $BLOCKED
Default sender domain: example.com
Received: header: DISABLED