Hexamail Guardとは 意味・読み方・使い方

Hexamail Guard is a server based software antispam filter for the Windows and Linux platforms.
Acting as a gateway at the SMTP level or as a plugin for Microsoft Exchange Server, it supports most common anti spam filtering techniques including:

• Bayesian pattern matching
• Keyword/String/Expression
• Header checks
• DNS based blocklists
• URL blocklists
• Image analysis
• Hosted image blocking
• Sender analysis using neural network
• Cloaking/Phishing detection
• Challenge-Response
• Blacklisting
• User-configurable whitelists
• Automatic Internet updates to blocking features
• Honeypot Matching
• Grey Listing
• IP Location Detection (geolocation detection of clients)
• Detection of Spam NDRs
• Domain Keys
• Sender Policy Framework
• Optional antivirus scanning