Cisco Cisco Email Security Appliance C170 Guia Do Utilizador

The Workqueue page shows the average time a message spends in the work queue, excluding any time 
spent in the Spam quarantine or in a policy, virus, or outbreak quarantine. You can view time periods 
from an hour up to one month. This average can help in identifying both short term events delaying mail 
delivery and identify long term trends in the workload on the system.

If a message is released from the quarantine into the work queue, the “average time in work queue” 
metric ignores this time. This prevents double-counting and distorted statistics due to extended time 
spent in a quarantine.

The report also shows the volume of messages in the work queue over a specified time period, and it 
shows the maximum messages in the work queue over the same time period. The graphical 
representation of the maximum messages in the work queue also shows the work queue threshold level. 

Occasional spikes in the Workqueue graphs are normal and expected. If the messages in the work queue 
remain higher than the configured threshold for a long duration, this may indicate a capacity issue. In 
this scenario, consider tuning the threshold level or review the system configuration.

For instructions to change the work queue threshold level, see 

When reviewing the work queue page, you may want to measure the frequency of work queue backups, 
and take note of work queue backups that exceed 10,000 messages.

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 to the time range 
that you specify. 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.

An increased number of incoming connections may not necessarily affect system load. 

The outgoing mail page shows outgoing connections, the total number of outgoing messages, the average 
message size, and the total outgoing message size. You can limit the results to the time range that you 
specify. It is important to have an understanding of the trends of normal message volume and spikes in 
your environment. You can use the outgoing mail page to help track volume growth over time and plan