User Guide
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AsyncOS 9.1.2 for Cisco Email Security Appliances User Guide
Chapter 34 Managing and Monitoring Using the CLI
Monitoring Using the CLI
Reading the Rates of Delivered and Bounced Messages
All rates are shown as the average rate an event occurs per hour at the specific point in time the query is
made. Rates are calculated for three intervals, the average rate per hour over the past one (1) minute, the
past five (5) minutes, and the past fifteen (15) minutes.
For example, if the Cisco appliance receives 100 recipients in a single minute, then the rate for the 1
minute interval will be 6,000 per hour. The rate for the 5-minute interval will be 1,200 per hour, and the
15-minute rate will be 400 per hour. The rates are calculated to indicate what the average rate for the
hour would be if the rate for the one minute period continued. Therefore, 100 messages each minute
would yield a higher rate than 100 messages over 15 minutes.
Table 34-3 lists the available rates and their description when monitoring the Cisco appliance.
Note This is the entire list. The displayed rates will vary depending upon which display option or command
you choose. Use this list as a reference.
Monitoring Using the CLI
• Monitoring the Email Status, page 34-7
• Monitoring Detailed Email Status, page 34-8
• Monitoring the Status of a Mail Host, page 34-11
• Determining the Make-up of the Email Queue, page 34-15
• Displaying Real-time Activity, page 34-16
• Monitoring Inbound Email Connections, page 34-19
• Checking the DNS Status, page 34-20
• Resetting Email Monitoring Counters, page 34-21
• Identifying Active TCP/IP Services, page 34-22
Table 34-3 Rates
Statistic Description
Messages Received
Rate of messages inserted into the delivery queue per hour.
Recipients Received
Rate of the number of recipients on all messages inserted into the
delivery queue per hour.
Soft Bounced Events
Rate of the number of soft bounce events per hour. (A message that soft
bounces multiple times has multiple soft bounce events.)
Completed Recipients
Rate of the total of all hard bounced recipients, delivered recipients and
deleted recipients. Any recipient that is removed from the delivery
queue is considered completed.
Hard Bounced Recipients
Rate of the total of all DNS hard bounces, 5XX hard bounces, filter
hard bounces, expired hard bounces and other hard bounces per hour.
A failed attempt to deliver a message to a recipient that results in
immediate termination of that delivery is a hard bounce.
Delivered Recipients
Rate of messages successfully delivered to a recipient per hour.