McAfee Secure Internet Gateway (SIG) is the industry's first fully integrated Web and e-mail security appliance designed for small and medium-size businesses. McAfee SIG delivers comprehensive protection against spyware, spam, inappropriate web content, phishing attacks, known viruses, worms and Trojans. This integrated appliance is a simple, affordable solution which is easily installed and virtually maintenance free, helping to protect company assets, maximize employee productivity, reduce corporate liability, and lower total cost of ownership. McAfee SIG is a member of the McAfee Secure Content Management family of appliances which also includes specialized solutions for large enterprises - Secure Messaging Gateway (SMG) and Secure Web Gateway (SWG).
McAfee's anti-spam module uses multiple highly sophisticated techniques to detect and block spam and phishing attacks: integrity analysis, heuristic detection, content filtering, blacklist and whitelist support, DNS blocklist support, and Bayesian filtering. Streaming updates ensure your protection is always up-to-date. Users can obtain daily digests of the messages that have been blocked as spam, and they also can administer their spam quarantine and manage their own blacklists and whitelists.