Cisco Cisco Email Security Appliance C170 Guia Do Utilizador
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Cisco IronPort AsyncOS 7.1 for Email Configuration Guide
OL-22158-02
Chapter 5 Configuring the Gateway to Receive Email
Note
When you create a new listener via the System Setup Wizard, AsyncOS creates
the listener with default values. However, when you create a listener manually,
AsyncOS does not use these default SBRS values.
the listener with default values. However, when you create a listener manually,
AsyncOS does not use these default SBRS values.
Use the Listeners page (Network > Listeners) or the
listenerconfig
command
to configure listeners that run over available IP interfaces on the IronPort
appliance. For more information about creating and configuring listeners, see the
“Customizing Listeners” chapter in the Cisco IronPort AsyncOS for Email
Advanced Configuration Guide. In “Using Virtual Gateway™ Technology” in the
Cisco IronPort AsyncOS for Email Advanced Configuration Guide, the IronPort
Virtual Gateway technology is explained, in which you can further define and
group IP interfaces over one or many IP addresses, or groups of IP addresses.
appliance. For more information about creating and configuring listeners, see the
“Customizing Listeners” chapter in the Cisco IronPort AsyncOS for Email
Advanced Configuration Guide. In “Using Virtual Gateway™ Technology” in the
Cisco IronPort AsyncOS for Email Advanced Configuration Guide, the IronPort
Virtual Gateway technology is explained, in which you can further define and
group IP interfaces over one or many IP addresses, or groups of IP addresses.
Figure 5-1
Relationship Between Listeners, IP Interfaces, and Physical
Ethernet Interfaces
Ethernet Interfaces
Enterprise Gateway Configuration
In this configuration, the Enterprise Gateway configuration accepts email from
the Internet and relays email to groupware servers, POP/IMAP servers, or other
MTAs. At the same time, the enterprise gateway accepts SMTP messages from
groupware servers and other email servers for relay to recipients on the Internet.
the Internet and relays email to groupware servers, POP/IMAP servers, or other
MTAs. At the same time, the enterprise gateway accepts SMTP messages from
groupware servers and other email servers for relay to recipients on the Internet.
Physical Ethernet interface
IP interface
Listener
Port
IP address
Physical interface
IronPort Email
Security appliance