Michael Tsai's must-have shareware program, SpamSieve, has just been updated to version 2.6.6. The new version, a 5.1 megabyte download, makes the following fixes and improvements:
-Now requires Mac OS X 10.4 or later.
-Made a variety of accuracy improvements, focused on dealing with obfuscations, image attachments, URLs, and HTML.
-Improved corpus speed and memory use.
-Made various improvements to the column widths and alignments in the rules and corpus windows, and added alternating row colors.
-Fixed a rare problem where Apple Mail on Mac OS X 10.5 might hang if you trained a message as spam while Mail was downloading messages.
-If the OS reports an error when playing a sound as an alert sound, SpamSieve now plays it using the normal sound channel.
-Increased the range of possible values for the uncertain spam threshold.
-Improved sorting of sound names in the pop-up menu.
-Fixed bug where SpamSieve wouldn’t launch if the "Microsoft User Data" folder had been replaced by an alias file that was invalid.
-No longer shows the Reset Corpus/History alert at launch if you hold down other modifier keys in addition to Command-Option.
-Updated the Dutch localization.

SpamSieve is available for a US$30 registration fee and requires Mac OS X 10.4 or later to run. The new version can either be downloaded directly from the web site or brought up to the current version via the program's built-in update feature.

If you've tried SpamSieve 2.7 and have any feedback about it, let us know in the comments or forums.