Technology that identifies and blocks unsolicited bulk email before it reaches inboxes.
Spam filters identify and block unsolicited bulk email (spam) using various techniques—keyword analysis, sender reputation, pattern matching, and machine learning. Spam filters operate at email gateways, catching unwanted messages before they reach user mailboxes. Modern spam filters are highly effective but imperfect—some spam gets through (false negatives) and legitimate email occasionally gets blocked (false positives). Spam filtering is baseline email security, distinct from more sophisticated phishing protection.
Why It Matters
The DSC Perspective:
Spam filtering is essential but not sufficient. It catches bulk spam but sophisticated phishing often passes through. Layer spam filtering with advanced threat protection for comprehensive email security.