Mail Queue Administration

Mail Queue Administration is one of the most important Administrator tools in CMail Server. It gives the Administrator the ability to see messages and read any message stored on the server in any mailbox or mail queue. CMail Servers Timed Operations i.e. when the application will send and receive mail is also defined here. Mail Queue Administration is accessed from the Configuration menu.

The Mail Queue Administration tool is designed to give the mail administrator an informed view of the contents of mail passing through CMail Server.

Mail Queues
When a message has been received by CMail Server, it is placed in one of a number of mail queues or a mailbox. Mailboxes are the standard user inboxes. When a message is placed in a mailbox, it has effectively reached its destination and requires no further processing action from CMail. If message requires further processing by CMail, e.g. it needs to be sent back to the Internet or on to another server, the message is placed in a queue. CMail has an Outgoing Queue for messages that currently waiting to be delivered to the Internet at the next mail exchange and an Internal Queue for mail that will be sent to another mail server on the same network. The Administrator can examine the contents of any queue or mailbox at any time.

Examining Queue Contents

  1. Open the Mail Queue Administration menu from the Configuration menu.
  2. Select the queue you wish to examine from the Examine Queue For list.

  1. All of the messages currently held in the queue will be displayed in the Existing entries in the select queue panel.

Viewing Message Contents

  1. Highlight the message you wish to view in the Existing entries in the select queue panel with the left mouse button.

  1. Click the View button to see the message contents.

Deleting Messages from Queues

  1. Highlight the message you wish to delete in the Existing entries in the select queue panel with the left mouse button.

  1. Click the Delete button to remove the message from the system.

Sending Messages Immediately

  1. Select the queue which contains the messages that should be sent immediately.

  1. Click the Send Now button.

Note: Even though you have sent the mail, it may still be visible in the queue, press Refresh to refresh the contents of the Existing entries in the select queue panel.

Timed Operations
Timed Operations determine when CMail will connect to the Internet to exchange email with your ISP's email servers.

Batching Mail for Delivery
Connecting to the Internet every time CMail receives a message that is destined for the Internet can be a costly affair if your Internet connection is through a modem or ISDN. To solve this problem, CMail can batch mail for delivery which means that outbound mail will be stored in a queue and then sent when either CMail reaches an appointed mail exchange period or the number of messages in the outbound queue reaches a user definable value. 

  1. Open the Mail Queue Administration menu from the Configuration menu.

  1. Check the box labeled Batch Mail for delivery.
  2. Enter a value in the Send mail when more than x messages waiting where x is the number of messages that will be queued before CMail will connect and send mail.
  3. Press OK to complete the changes.

Defining the Mail Exchange periods
The frequency that CMail Server attempts to exchange mail (send and receive) from the Internet is defined by the values specified in the Send and Check for mail after x fields.

  1. Open the Mail Queue Administration menu from the Configuration menu.

  1. Enter the relevant values in the Send & Check for mail after x Hours and x Minutes where x is the number of hours and minutes respectively. For example, 0 Hours and 15 Minutes would Exchange mail every 15 Minutes.
  2. Press OK to complete the changes.

Time to Send
By default, CMail will check for mail between the hours of 08:00 and 18:00 - Monday to Friday. These times are user definable:

  1. Open the Mail Queue Administration menu from the Configuration menu.

  1. Modify the two time fields labeled Check between x and x where x is the time value required.

  1. Check the relevant Days to Check boxes.
  2. Press OK to complete the changes.

Note: Time restrictions only apply to connections established using Windows Dialup Networking - not Router or LAN connections.

Copy all Mail to Administrator
Should the Mail Administrator wish to receive a copy of every message, incoming and outgoing, through CMail:

  1. Open the Mail Queue Administration menu from the Configuration menu.

  1. Check the Copy all mail to Administrator checkbox
  2. Press OK to complete the changes.

Message Failures
When CMail Server is unable to send a message to an Internet recipient, the message is placed back into the outgoing mail queue to be sent again at the next mail exchange. CMail will repeat this process the number of times as specified in the Try to send mail x times field where x is the number of retries. If this value is exceeded, the message will be deleted and the sender will receive a failure notice.

Changing the Failure retry value

  1. Open the Mail Queue Administration menu from the Configuration menu.

  1. Enter the desired number of retries in the Try to send mail message x times field.
  2. Press OK to complete the changes.

Allow Timed Operations with SCM
You should note that this option is only available when SCM has been selected as a connection method on the Configuration > Remote Access menu.

In previous versions, CMail Server could only connect to the Internet and check for mail once every thirty minutes when used in conjunction with SCM. Enabling the Allowed Time Operations feature will enable CMail Server to use its own scheduling facilities alongside those of SCM - i.e. if CMail Server is configured to collect mail every 5 minutes, it may do so as long as SCM is not within a restricted timeslot. 

Allow Priority Send
When enabled, this feature allows messages with a high priority flag to override the CMail's mail batching options and connect to the Internet immediately to deliver the message. 

Configuration Menu
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