To Setup 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 steps.

1. Enable Quota Notification

   Run the following 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.

2. Define a Quota Warning Message

   The Warning Message is the message that will be sent to users who are close to exceeding their disk quota. 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’

3. Specify how often the warning message is sent.

   Set the following parameter:

   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.

4. 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.

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   Note –

   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.

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   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.

   To specify a quota threshold at the command line:

   configutil -o store.quotawarn -v number

   where number indicates a percentage of the allowed quota.