Frequently Asked Questions
How does Message Defence protect against email threats?
Message Defence uses a multilayered approach to provide protection available against spam, viruses, spoofing, phishing and spyware attacks. An added benefit of Message Defence is the optimised processing of each email to maximise performance and capability to filter millions of messages per day.
How is email filtered?
Deployed at the network perimeter, all incoming email must pass through all 12 defense layers of Message Defence before any of it can reach the intended recipients. The defense layers are grouped into two main classes: connection management, which involves dropping incoming mail connections before receiving messages, and mail scanning, which analyses messages upon receipt. During the filtering process, emails are checked for new and familiar spammer attacks, viruses, and customized administrator policy violations. Based on administrator and user preferences, spam can be tagged, quarantined or blocked.
Why tag email? What happens to tagged emails?
Tagging email benefits organisations by easily identifying messages that meet set criteria. Tagged emails are delivered to the recipient with a customisable label, such as [BULK], that is added to the subject of the message.
Why quarantine email? What happens to quarantined email?
Quarantining emails is a safeguard that allows for examination of questionable messages prior to accepting or rejecting; typically, quarantined email does turn out to be spam. An administrator can choose two types of email quarantine: global or per user quarantine.
When configured for global quarantine, Message Defence routes all quarantined email to a mailbox specified by the administrator. When configured for per user quarantine, Message Defence stores the email locally and notifies users periodically of their quarantined email. Users can choose to delete quarantined email, forward it to their own mailboxes or whitelist the sender address to prevent future email from being quarantined.