Hexamail Guard
From Wikipedia, the free encyclopedia
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
- Detection of Spam NDRs
- Domain Keys
- Sender Policy Framework
- Optional antivirus scanning
In addition it supports external POP3 account downloading and filtering, a spam quarantine with multiple options for processing including: listing, forwarding, blocking, marking/tagging and deletion. Users can review their own spam through a web-based quarantine view.
