Cisco Cisco Email Security Appliance C370D ユーザーガイド

Logs are a compact, efficient method of gathering critical information about the 
email operations of AsyncOS. These logs record information regarding activity on 
your IronPort appliance. The information will vary depending upon the log you 
view, for example, Bounce logs or Delivery logs.

Most logs are recorded in plain text (ASCII) format; however, delivery logs are 
formatted in binary for resource efficiency. The ASCII text information is 
readable in any text editor.

IronPort offers an off-box centralized reporting and tracking tool for logs from 
multiple IronPort appliances. See your IronPort representative for more 
information.

A log subscription associates a log type with a name, logging level, and other 
constraints such as size and destination information; multiple subscriptions for 
the same log type are permitted. T

The log type indicates what information will be recorded within the generated log 
such as message data, system statistics, binary or textual data. You select the log 
type when creating a log subscription. See 

 for 

more information.

IronPort AsyncOS for Email generates the following log types:

Text mail logs record information regarding the operations 
of the email system. For example, message receiving, 
message delivery attempts, open and closed connections, 
bounces, TLS connections, and others.

qmail format delivery logs record the same information 
regarding the operations of the email system as delivery 
logs following, but stored in qmail format.