IronPort - advanced configuration guide

Chapter 2 Configuring Routing and Delivery Features
Rewriting Addresses
OL-25137-01
Figure 2-3 SMTP Routes Defined for a Public Listener
SMTP
Public Listener: InboundMail
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):
IP interface: PublicNet (e.g. 192.168.2.1)
Ethernet interface: Data 2
Ethernet interface: Data 1
IP interface: PrivateNet (e.g. 192.168.1.1)
exchange.example.com
The smtproutes command was
used to route mail accepted on the
public listener InboundMail for
example.com to the host
exchange.example.com.
IronPort Email
Security appliance
AsyncOS provides several methods for rewriting Envelope Sender and Recipient addresses in the email
pipeline. Rewriting addresses can be used, for example, to redirect mail sent to a partner domain or to
hide (“mask”) your internal infrastructure.
Cisco IronPort AsyncOS 7.6 for Email Advanced Configuration Guide
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