Overview of Proofpoint
The Proofpoint Messaging Security Gateway is responsible for enforcing electronic mail (email) anti-spam, anti-virus, advanced threat and content policies. All incoming email is inspected by the Proofpoint Messaging Security Gateway before being delivered to you.
Messages that contain a virus, spam, or contain inappropriate content are blocked. Messages that are potentially valid will be made available to you via your personal Spam Quarantine.
Email classified as “low-priority” – solicitations, newsletters, and advertisements will be sent to your personal Low Priority Mail Quarantine. (Note: Local messaging security policies determine what content will be made available to you through the Spam Digest and or End User Web interface).
A Spam Digest (subject starting with “End User Digest:”) will arrive in your inbox only if new messages have arrived that were blocked. The Proofpoint Digest is scheduled to be emailed approximately 4 times per day.