Configuring the Delay Queue

Use the options on the Delay Queue tab to configure options that control delayed messages. Delayed messages are suspect emails that are held for a specified period of time. By delaying delivery, the appliance creates a timed interval during which new anti-spam definitions created by Sophos Labs can be received, after which the appliance can rescan the messages using the most up to date information possible.

To configure delay queue options adjust the value of any of the following settings:

Delay queue settings

  • Status: When set to Collect, the appliance will collect information in the delay queue database, but no delay action will be taken. When set to On, messages will be delayed once the database has enough information to delay based on IP, or if a message is otherwise categorized as suspicious. When set to Off, messages will not be delayed, and any messages already in the delay queue will be delivered when the Maximum delay time is reached. The default is Collect.
  • Minimum delay time: The minimum amount of time to delay a message. The default is 10 minutes.
  • Maximum delay time: The maximum amount of time delay a message. The default is 60 minutes.
  • Delay queue size limit: The maximum allowed size of the delay queue. The default is 1024 MB.
  • History DB minimum threshold: The minimum number of message records collected in the delay queue history database before the appliance begins to delay messages. The default is 1000.
  • History DB expiry threshold: The maximum number of message records stored in the database before queued messages are expired. The default is 1,000,000 records.
  • History DB expiry age: The maximum age in days before records expire. The default is 180 days.
  • Reset to Defaults: Restores the factory settings.

After you have made any necessary changes you can:

  • Click Apply to save your changes.
  • Click Cancel to discard your changes.