SpamSieve 3.2.1

October 3rd, 2025 (SpamSieve)
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Version 3.2.1 of SpamSieve is now available.

Save time by adding powerful spam filtering to the e-mail client on your Mac. SpamSieve gives you back your inbox, using Bayesian spam filtering to provide amazing accuracy that’s constantly improving. SpamSieve learns and adapts to your mail, so it’s able to block nearly all the junk—without putting good messages in the Junk mailbox. It’s quick and easy to control SpamSieve from within Apple Mail, Outlook, Airmail, MailMate, MailMaven, GyazMail, and more.

SpamSieve running on your Mac can keep the spam off your iPhone/iPad, and you can even train SpamSieve from your iOS device. SpamSieve protects your privacy. It does not need access to your mail account login and does not transmit your mail data anywhere. All the processing is done on your Mac.

Purchase: Check Upgrade OptionsSpamSieve 3.2.1 is a free update for those who have already purchased the SpamSieve 3.0 upgrade. If you’re using SpamSieve 2 and haven’t upgraded yet, the easiest way is to first let SpamSieve install the new version. At launch, it will show the Purchase window, and you can click the Check Upgrade Options button to get the upgrade discount without having to enter your old serial number.

The changes in this version are:

Microsoft Outlook
  • Settings: OutlookAs previously mentioned, Microsoft will be temporarily removing Outlook’s support for AppleScript (and, thus, SpamSieve) on November 1. It is scheduled to return in December. In the interim, SpamSieve can continue to filter your mail if you set up your mail accounts and SpamSieve in Apple Mail. This will also keep the spam out of your inbox in Outlook, and if you enable the Train messages in TrainSpam and TrainGood setting, you can still train SpamSieve from within Outlook. There’s more information about all of this in the End of Support for Legacy Outlook section of the manual.
Apple Mail
  • Settings: Apple Mail TrainingWorked around a bug in macOS Tahoe 26, affecting some customers with POP accounts, that could cause hangs or prevent messages from moving to the Junk mailbox.
  • Updated the Train messages in TrainSpam and TrainGood section of the manual.
  • Fixed a bug where remote training would log (harmless) errors for POP accounts.
  • Apple Mail: ExtensionsThe Mail extension will now retry if it gets a timeout error communicating with SpamSieve.
  • Improved the Mail extension’s error reporting.
  • Worked around a macOS bug that could cause a hang when logging Mail-related errors.
  • SpamSieve is better at finding the inbox when running in Spanish.
macOS Tahoe 26
  • Apple Mail: Training CommandsWorked around a change where macOS would keep trying to re-add the SpamSieve icon to the menu bar even if you’d turned the Show menu bar icon feature off.
  • Fixed a bug where the Dock icon didn’t adapt to different themes.
  • Worked around a macOS bug that could cause a crash at launch.
  • Improved the layout of the Software Update… sheet.
General
  • Help MenuThe status colors for the menu bar icon when training and filtering now use the same colors as SpamSieve’s Dock icon and Apple Mail.
  • Worked around a Help Viewer bug on macOS 14.
  • Tried to work around a crash updating the Statistics window if the database is damaged.
  • The diagnostic report shows additional information about fragmentation of SpamSieve’s database files and the Apple Mail Junk mailbox configuration.
  • Fixed the icon margins in the legacy ICNS file and documentation.
  • Updated the Swedish localization.

SpamSieve 3.2.1 works with macOS 10.13 through macOS Tahoe 26 and requires an e-mail client. Older SpamSieve versions are available for older versions of macOS. In-depth information about SpamSieve is available in the manual.

If you enjoy using SpamSieve, please take a moment to review it on MacUpdate or to mention it on Twitter, Mastodon, Instagram, Facebook, or your own site. We’d really appreciate it.