C-Command software released SpamSieve 2.9.38, improving the accuracy of the Bayesian spam filtering tool and improving the spam list text in Apple Mail with a variety of highlight colors. The update also works around a change in the next macOS 10.15.4 Catalina which could prevent Mail from loading the SpamSieve plug-in, fixes an Apple Mail bug which could cause spam messages to be marked as spam but not move them to the spam mailbox, includes new experimental functionality to save backups of messages he has processed, fixes a rare bug in 10.15 that deletes messages instead of moving them to an IMAP mailbox or Exchange and revises the Apple Mail and Postbox plug-ins for the new macOS requirements notarization. ($ 30 new with a 20% discount for TidBITS members, free update, 15.6 MB, release notes, macOS 10.7+)