Cisco Cisco Email Security Appliance X1050 ユーザーガイド

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Chapter 2      Using Email Security Monitor
Email Security Monitor Pages
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Cisco IronPort AsyncOS 7.1 for Email Daily Management Guide
OL-22160-02
Figure 2-30
System Capacity - Workqueue
System Capacity- Incoming Mail
The incoming mail page shows incoming connections, the total number of 
incoming messages, the average message size, and the total incoming message 
size. You can limit the results by an hour, day, week, or month. It is important to 
have an understanding of the trends of normal message volume and spikes in your 
environment. You can use the incoming mail page to help track volume growth 
over time and plan for system capacity. You might also want to compare the 
Incoming Mail data with the Sender Profile data to view the trends in volumes of 
emails that are being sent from specific domains to your network.
Note
an increased number of incoming connections may not necessarily affect system 
load.