Feature Requests
Bayesian (or Other Statistical) Filtering
Add a new statistical filter test to ORF. The most widely known and used statistical technique is Bayesian filtering, a "learning" email classification method. When properly trained and maintained, statistical filters work very effectively. However, they require a reliable feed of actual legitimate and spam messages for initial training, so end-users are likely required to participate in the training.
Direct ClamAV Anti-Virus Support
Add documentation and/or more direct binding to the free ClamAV anti-virus, including the phishing signatures.
Direct Logging to SQL Databases
Add a new log media to ORF that would log directly into an SQL database (e.g. via ODBC or OLEDB), such as Microsoft® SQL Server or MySQL.
Log All Outgoing Emails
Option to log all outgoing emails relayed through the SMTP/Exchange server ORF is bound to, not only those where the recipient of the outgoing email is added to the Auto Sender Whitelist Database.