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21. Administering Exim > Mailbox Maintenance

Mailbox Maintenance

Now and again there are occasions when you want to prevent any new messages from being delivered into a user’s mailbox because you want to carry out maintenance activity on it, or investigate a problem. You could modify Exim’s configuration file to defer deliveries to that user, but then you would have to remodify it afterwards, and in any case, this would not prevent user agents from modifying the mailbox. A better approach is to lock the mailbox.[199]

The exim_lock utility locks a mailbox file using the same algorithm as Exim. This prevents modification of a mailbox by Exim or a user agent. The utility requires the name of the file as its first argument. If the locking is successful, the second argument is run as a command. If there is no second argument, the value of the


  

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