bogofilter - 0.15.12 - new current release

• Previous message: Frederick Noronha (FN): "Re: SuperGNU"
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Date: Wed, 24 Dec 2003 13:17:45 CST

Bogofilter is a mail filter that classifies mail as spam or ham
(non-spam) by a statistical analysis of the message's header and content
(body). The program is able to learn from the user's classifications
and corrections.

The statistical technique is known as the Bayesian technique and its use
for spam was described by Paul Graham in his article "A Plan For Spam".
Gary Robinson, in his weblog Rants, suggests some refinements for
improved discrimination between spam and ham. Bogofilter's primary
algorithm uses the f(w) parameter and the Fisher inverse chi-square
technique that he describes.

Bogofilter is run by an MDA script to classify an incoming message as
spam or ham (using wordlists stored by BerkeleyDB). Bogofilter provides
processing for plain text and html, supports multi-part mime message
with decoding of base64, quoted-printable, and uuencoded text and
ignores attachments, such as images.

Bogofilter is written in C. Supported platforms: Linux, FreeBSD,
Solaris, OS X, HP-UX, AIX, RISC-OS, OS/2, ...

******* ******* ******* ******* *******

Bogofilter 0.15.12 is available on SourceForge. The download URL is
http://sourceforge.net/project/showfiles.php?group_id=62265

This release has a variety of minor fixes and changes and documentation
updates. See the excerpt from NEWS-0.15 (below).

If upgrading to 0.15.12 from a version older than 0.15.4, you should
rebuild your token database to take advantage of header line tagging
which was expanded in 0.15.4

                               =================
                                BOGOFILTER NEWS
                               =================

Be sure to read RELEASE.NOTES-0.15, with attention to the section
about retraining and the '-H' flag...

0.15.12 2003-12-24

* Fix decoding of escaped urls.
* Fix sigsegv in bogotune when '-D' option is used.
* Fix compilation problems with datastore_tdb.c and datastore_qdbm.c
* Force line buffered output when not in passthrough mode.
* Minor fixes for parsing msg-count files.
* Clarify list of supported mail formats in FAQ.
* Enhance memdebug capabilities.

* Distinguish between pipe and stdin as input sources.
  (contributed by Henning Makholm)

0.15.11 2003-12-17

* Fixed CRLF problem in bogoreader.c
* Exclude ~ (tilde) at the end of tokens.
* Updates to configure scripts, makefiles and contrib files to support
  DGUX.
* bogotune-faq.html - new file
* bogofilter - man page and FAQ updated
* bogoupgrade - revised help message and man page
* Improved configuration of BerkeleyDB and GSL.
* Removed unused '-F' (force) option from bogofilter.
* Removed unused '-q' (quiet) option from bogofilter.
* Bugfix for SIGFPE (division by zero) crash on start-up on systems
  with BerkeleyDB 3.2 or older.
* bogotune now understands degeneration options and can use
  them when creating message-count files.

0.15.10 2003-12-08

* Multiple fixes, revisions, and changes to bogotune.
* Added -M option to bogotune for creating message count files.
* Fixed bug in header degeneration.
* Added degeneration options to config file.
* Added subject line tagging for Unsures.
* Formatting and portability fixes for DGUX.
* Fixed "configure --enable-static" for building statically linked
  executables.
* The test suite now uses static executables when "configure
  --enable-static" has been used.
* The test suite no longer depends on procmail for t.MH and t.maildir
  or formail for t.bulkmode.
* Moved robx calculation code to new file for sharing by bogoutil and
  bogotune.
* Fix segfault when using '-H' (header_degen) option.

0.15.9 2003-11-23

* Configure now finds a POSIX compliant shell for running version.sh
* Remove --disable-* options for algorithms. Has never been supported
  well and serves no useful purpose, the algorithm code is irrelevant
  compared to lexer or other stuff.
* Fixed a memory leak in bogoutil.
* Cleaned up help message in bogoutil.
* Bogotune now checks for incorrectly classified messages in the test
  data and exits if so.
* Bogotune's memory needs lessened.
* Fixed timestamp config option.
* Exclude apostrophes and backticks at the end of a token.
* Lexer changes reduce size of bogofilter executable by approx 90%.
* Lexer.c no longer discards X-Bogosity lines in rfc822 attachments.
* Removed repetition counts in lexer for TOKEN and MIME_BOUNDARY
  patterns to reduce executable size.
* "<!DOCTYPE HTML PUBLIC...>" is now recognized as starting html text.
* Several minor lexer bugs fixed.
* Updated bogominitrain.pl to v1.4.2
* TDB passes all checks again.
* QDBM support fixed.
* Minor documentation fixes.
* Minor error message cleanups.
* Refactored passthrough.c.
* Test suite bugfixes for TDB/QDBM.
* BerkeleyDB support warns if data base size approaces file size
resource limit.

0.15.8 2003-10-29

* Modified handling of mime attachments to decode rfc822 and to
  ignore applications and images.
* Added decoding of percent escaped characters in URLs.
* Script tuning/bogotune rewritten as C program.
* Added man page for bogotune.
* Print "X-Bogosity" line when "-t" is used alone.
* Change bogoupgrade back to using 2 arg open for perl-5.6
  compatibility.
* Initialize wordhash storage.
* Fix initialization problem that prevents reading more than
  one msg-count file.
* Configure script modified to better detect BerkeleyDB libs.
* Makefile modified to build bogolexer and bogoutil with fewer
  shared libs.
* Fix build problem in doc directory.
* English and french versions of bogofilter-faq.html revised.

0.15.7 2003-10-13 - Stable Release

* Added decoding of escaped characters in html.
* Disable header line tagging when processing msg-count files.
* Revised mailbox processing so type recognition is now table driven.
* Include all tokens in bogoutil dump output (unless in maintenance
  mode).
* Added support for ANT mailboxes.
* Made portability changes for OS/2 and RISC-OS

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