To Deploy Quota Notification

Quota notification is the process of sending users a warning message when they are getting close to their quota. Using this feature requires three procedures:

• To Enable Quota Notification

• To Define a Quota Warning Message

• To Specify a Quota Threshold

To Enable Quota Notification

Quota notification can be enabled by Console or command line.

Steps

1. Click the Quota tab.

2. Check the “Enable quota notification” box. To disable quota notification, uncheck this box.

3. Define the quota warning messages. See To Define a Quota Warning Message.

4. Click Save.

   Command Line

   To enable or disable quota notification at the command line:

   configutil -o store.quotanotification -v [ yes | no ]

   If the message is not set, no quota warning message is sent to the user. See the next section for an example of quota warning message format.

To Define a Quota Warning Message

Define the message that will be sent to users who are close to exceeding their disk quota as follows. Messages are sent to the user’s mailbox.

Steps

1. Click the Quota tab.

2. From the drop-down list, choose the language you want to use.

3. Type the message you want to send in the message text field below the drop-down list.

4. Click Save.

   Command Line

   To define a quota warning message at the command line:

   configutil -o store.quotaexceededmsg -v ’message’

   The message must be in RFC 822 format. It must contain a header with at least a subject line, follow by $$, then the message body. ’$’ represents a new line. Depending on the shell that you are using, it might be necessary to append a \ before $ to escape the special meaning of $. ($ is often the escape character for the shell.) Example:

   configutil -o store.quotaexceededmsg -v ”Subject: WARNING: User quota exceeded$$User quota threshold exceeded - reduce space used.’

   In addition, there is support for the following variables:

   [ID] - userid

   [DISKUSAGE] - disk usage

   [NUMMSG] - number of messages

   [PERCENT] - store.quotawarn percentage

   [QUOTA] - mailquota attribute

   [MSGQUOTA] - mailmsgquota attribute

   Here’s an example, using these variables:

   configutil -o store.quotaexceededmsg -v ”Subject: Overquota Warning$$[ID],$$Your mailbox size has exceeded [PERCENT] of its alloted quota.$Disk Usage: [DISKUSAGE]$Number of Messages: [NUMMSG]$Mailquota: [QUOTA]$Message Quota: [MSGQUOTA]$$-Postmaster’

   To define how often the warning message is sent:

   configutil -o store.quotaexceededmsginterval -v number

   where number indicates a number of days. For example, 3 would mean the message is sent every 3 days.

To Specify a Quota Threshold

A quota threshold is a percentage of a quota that is exceeded before clients are sent a warning. When a user’s disk usage exceeds the specified threshold, the server sends a warning message to the user.

When local.store.quotaoverdraft=on email notifications are not triggered until the user’s disk usage exceeds 100% of the quota regardless of the threshold set with store.quotawarn.

For IMAP users whose clients support the IMAP ALERT mechanism, the message is displayed on the user’s screen each time the user selects a mailbox and a message is also written to the IMAP log.

Steps

1. Click the Quota tab.

2. In the “Quota warning threshold” field, enter a number for the warning threshold.

   This number represents a percentage of the allowed quota. For example, if you specify 90%, the user is warned after using 90% of the allowed disk quota. The default is 90%. To turn off this feature, enter 100%.

3. Click Save.

   Command Line

   To specify a quota threshold at the command line:

   configutil -o store.quotawarn -v number

   where number indicates a percentage of the allowed quota.