Руководство Пользователя для Cisco Cisco Email Security Appliance C170

Скачать
Страница из 1212
 
Glossary
GL-4
User Guide for AsyncOS 10.0 for Cisco Email Security Appliances
 
I
IDE File
Virus Definition File. An IDE file contains signatures or definitions used by 
anti-virus software to detect viruses.
L
LDAP
Lightweight Directory Access Protocol. A protocol used to access information 
about people (including email addresses), organizations, and other resources in 
an Internet directory or intranet directory.
Listener
A listener describes an email processing service that will be configured on a 
particular IP interface. Listeners only apply to email entering the Cisco 
appliance — either from the internal systems within your network or from the 
Internet. IronPort AsyncOS uses listeners to specify criteria that messages must 
meet in order to be accepted and relayed to recipient hosts. You can think of a 
listener as an “email injector” or even a “SMTP daemon” running for each IP 
address you specify. 
IronPort AsyncOS differentiates between public listeners — which by default 
have the characteristics for receiving email from the Internet — and private 
listeners that are intended to accept email only from internal (groupware, 
POP/IMAP, and other message generation) systems. 
Log Subscription
Creation of log files that monitor the performance of the Cisco appliance. The 
log files are stored in local disk(s) and can also be transferred and stored in a 
remote system. Typical attributes of a log subscription include: name, 
component to monitor (email operations, server), format, and transfer method.
M
Mail Flow Policies
A mail flow policy is a way of expressing a group of Host Access Table (HAT) 
parameters (an access rule, followed by rate limiting parameters and custom 
SMTP codes and responses) for a listener. Together, sender groups and mail 
flow policies are defined in a listener’s HAT. Your Cisco appliance ships with 
the predefined mail flow policies and sender groups for listeners. 
MAIL FROM
See Envelope Sender.
Maximum Number 
of Retries
The maximum number of times that redelivery of a soft bounced message will 
be attempted before being hard bounced.
Maximum Time in 
Queue
The maximum length of time that a soft bounced message will stay in the email 
queue for delivery before being hard bounced.