Cisco Cisco Email Security Appliance C160 Guía Del Usuario
Chapter 5 Configuring the Gateway to Receive Email
5-82
Cisco IronPort AsyncOS 7.5 for Email Configuration Guide
OL-25136-01
expands the illustration shown in
to include the processing
sequence of a listener’s HAT and (if applicable) RAT, and the default values for
each.
each.
Figure 5-44
Public and Private Listeners
Private Listener
IronPort Email
Security appliance
Public Listener
Internet:
Hosts: Many
Recipients: Limited
Recipients: Limited
Internal Network:
Hosts: Limited
Recipients: Many
Recipients: Many
Host Access Table (HAT)
Host
ACCEPT
Host
RELAY
ALL
ACCEPT
Recipient Access Table (RAT)
Domain
ACCEPT
ALL
REJECT
Host Access Table (HAT)
Host
RELAY
ALL
REJECT
Public:
Private:
No RAT