69 Mail Service

The Mail Service is an aggregate of all Mail services, including Infrastructure Services and User Access Services. Infrastructure Services include Housekeeping Services, Virus Scrubber Services, and List Services; and User Access Services include IMAP Services, POP Services, SMTP Services, and NNTP Services.

69.1 Network

The Network category provides information about the data transferred between the various mail services i.e. Infrastructure Services and User Access Services.

Note:

For target version 1.0, the collection frequency for each metric is every 15 minutes.

The following table lists the metrics and their descriptions.

Table 69-1 Network Metrics

Metric	Description
Total Client Connections (current)	Shows the total number of open connections for User Access Services like IMAP Service, POP Service, SMTP Service, and NNTP Service.
Total Messages Received (current)	Measures the total number of messages received by the mail servers of the User Access Services (i.e. IMAP Service, SMTP Service, and NNTP Service) from their respective mail clients.
Total Messages Sent (current)	Measures the total number of messages transmitted by the mail servers of the User Access Services (i.e. SMTP Service and NNTP Service) from their respective mail clients.

69.2 Queue Messages

The Queue Messages category provides information about queued messages.

69.2.1 Queued messages pending pruning

This metric indicates the number of messages that are yet to be pruned. The value is the sum of all the messages that are not yet pruned for Mail Infrastructure Services like the Housekeeper Service and List Service.

Metric Summary

The following table shows how often the metric's value is collected.

Target Version	Evaluation and Collection Frequency
Version 1.0	Every 15 minutes

69.2.2 Queued messages pruned

This metric indicates the number of messages that have been pruned. The value is the sum of all the messages that have been pruned for Mail Infrastructure Services like the Housekeeper Service and the List Service.

Metric Summary

The following table shows how often the metric's value is collected.

Target Version	Evaluation and Collection Frequency
Version 1.0	Every 15 minutes

69.3 Resource Usage

The Resource Usage category provides information about resources used.

Note:

For target version 1.0, the collection frequency for each metric is every 15 minutes.

The following table lists the metrics and their descriptions.

Table 69-2 Resource Usage Metrics

Metric	Description
Length of List Queue	Number of messages that are in the list server queue. The value is the sum of all messages that are in the queues of all the list servers.
Local Queue Length	Number of messages that are in the local delivery queue. The value is the sum of all messages of all the local delivery queues of the mailstore.
Messages Being Processed	Number of messages which are currently being processed by the various Mail servers, including SMTP server, list server, and NNTP server. The value is the sum of all messages being processed by all infrastructure services and user access services.
Relay Queue Length	Number of messages that are in the relay queue. The value is the sum of all messages that are in all the relay queues of the mailstore.
Submit Queue Length	Number of messages that are in the submit queue. The value is the sum of all messages that are in all the submit queues of the mailstore.

69.4 Response

The Response category captures the response characteristics of all the mail services (Infrastructure Services and User Access Services) as seen by a client application.

69.4.1 Status

This metric indicates whether or not all mail services (Infrastructure Services and User Access Services) are available. The status is the status of all Housekeeper Services, Virus Scrubber Services, List Services, IMAP Services, POP Services, NNTP Services, SMTP Services, Send Services, Read Services, and other dependent targets. The status is "up" only when all of these services are available.

User Action

If the Status of the Mail Service is down, then check the results obtained by Root Cause Analysis on the Mail Service Home Page.

69.5 Response Time

The Response Time category provides information about the average time taken to connect, login, read, and send emails utilizing the various Mail User Access services.

Note:

For target version 1.0, the collection frequency for each metric is every 15 minutes.

The following table lists the metrics and their descriptions.

Table 69-3 Response Time Metrics

Metric	Description
Avg. Connect Time (ms)	Average time taken by mail servers of the Mail User Access Services to accept network connections from their clients. This value is computed by taking the average of the time taken by SMTP Servers, POP Servers, and NNTP Servers to accept connections from their clients.
Avg. Login Time (ms)	Average time taken by connected clients to log into their respective mail servers. This value is computed by taking the average of the login time of the IMAP Service and POP Service.
Avg. Read Email Time (ms)	Average time taken to retrieve messages from the Oracle Collaboration Suite Database (mailstore) through Mail User Access Services. This value is the average of the time taken for reading emails through the IMAP service and POP service.
Avg. Send Email Time (ms)	Average time taken to transmit messages from the Oracle Collaboration Suite Database (mailstore) through the SMTP Servers.

69.6 Security

The Security category provides information about security-related activity.

69.6.1 Refused Flood Connections

This metric shows the total number of connections refused by IMAP and POP servers.

Metric Summary

The following table shows how often the metric's value is collected.

Target Version	Evaluation and Collection Frequency
Version 1.0	Every 15 minutes