Michael Tsai of C-Command Software has released SpamSieve 2.9.26, ensuring compatibility with Apple Mail in macOS 10.12.1 Sierra. (If you have already updated to that version of Sierra, choose SpamSieve > Install Apple Mail Plug-In to install the SpamSieve plug-in and avoid accidentally moving good messages to the spam mailbox.) The spam filtering utility makes improvements to SpamSieve’s filtering accuracy, tells Apple Mail’s junk filter when incoming messages are not junk (instead of only when they are junk), adjusts sizes of the Dock icon status indicators to deal with a font change in Sierra, and works around an OS certificate error when checking for a software update. ($30 new with a 20 percent discount for TidBITS members, free update, 13.4 MB, release notes, 10.6+)
Thoughtful, detailed coverage of the Mac, iPhone, and iPad, plus the TidBITS Content Network for Apple consultants.