Release Notes: A new option to query and update the allow-list directly was added. The spam threshold level can be now altered. A second "global" database can now be used. Some minor bugfixes were made.
Release Notes: The tokeniser was improved further to recognize distinct URLs and to compress whitespace. Additional filters for IP-based URLs and virus attachments were added.
Release Notes: Minor cosmetic fixes were made for non-Linux systems. Speed improvements have been made in the binary tree backend database.
Release Notes: A memory management bug in the MySQL backend was fixed. Some outdated information in the documentation was fixed. The default database backend was optimised.
Release Notes: An optional MySQL database backend has been added.
Release Notes: This version fixes a data corruption bug in the internal database backend, adds locking to the internal database, drops support for Berkeley DB, and makes the internal database the default instead of GDBM. The new filters have been documented.
Release Notes: Spam scoring now uses the more accurate Robinson method. Extra tests have been added to enhance spam detection. Token pairing has been added to enhance accuracy.
Release Notes: The manual was expanded to include a full description of the technical details, an explanation of the "allow-list" feature, and many examples.
Release Notes: An optional "allow list" feature has been added, which automatically classifies email from known addresses as non-spam.
Release Notes: Database auto-pruning was added. After every 100 updates, the database is now trimmed automatically.