Step 7 Quarantine Notification Interval
Anti-Spam Filter Setup Guide | DoIT

The Quarantine notification enables the system to generate an automated quarantine summary e-mail based on the Interval specified on this screen, if you happen to have received any quarantined e-mail. The default Interval is set to Daily but you can choose to be notified “Weekly” or “Never.” Since these emails allow you to verify that ONLY SPAM has been quarantined, setting the Interval to "Never" is not recommended.

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