This is a list of system messages and notifications that apply to you. Use the "Notifications" page in the "Settings" area to decide how you will receive notifications. Once you have read a notification, you can mark it for removal from your list.
Note: The following notification types expire automatically when you choose an email notification option and are deleted from your inbox after the number of days specified in "Administration menu" → "Site options" → "Notification settings" → "Internal notification expiry":