SpamSieve
SpamSieve
2.9.39

4.6

SpamSieve free download for Mac

SpamSieve2.9.39

05 March 2020

Robust spam filter for major email clients.

Overview

SpamSieve is a robust spam filter for major email clients that uses powerful Bayesian spam filtering.

SpamSieve understands what your spam looks like in order to block it all, but also learns what your legitimate messages look like to avoid confusion. SpamSieve only marks spam in your email client so you never lose any mail.

The following is a partial list of SpamSieve’s features, so that you can quickly see what it can do and how it’s unique:

  • Powerful Bayesian spam filtering results in high accuracy and almost no false positives. It adapts to the mail that you receive to get even better with time. Some other e-mail programs include Bayesian filters, but SpamSieve is more accurate.
  • Integrates with your e-mail program for a superior user experience. Plus, you get the same great filtering if you ever switch e-mail programs or use more than one at a time.
  • SpamSieve works with any mail provider/host. It filters all your mail accounts. There is no extra charge for additional addresses or devices.
  • SpamSieve running on your Mac can keep the spam off your iPhone/iPad, and you can even train SpamSieve from afar.
  • Colors show how spammy each message is, so you can quickly focus on the borderline ones if you want to check SpamSieve’s work.
  • Integrates with the macOS Contacts app (and also Eudora’s and Entourage’s address books) so that messages from friends and colleagues are never marked as spam.
  • Automatically maintains a blocklist so that it can instantly adapt to spam messages sent from particular addresses, and catch 100% of them.
  • Automatically maintains a whitelist to guarantee that messages from particular senders or mailing lists are never marked as spam, without cluttering your address book with these addresses.
  • You can customize the whitelist and blocklist, adding sophisticated rules that match various message headers, or the message body. The rules can match text in a variety of ways, including using regular expressions.
  • Can use the Habeas Safelist, which indicates messages that are not spam, as well as the "ADV" subject tag indicating that a message is spam.
  • Many spammers encode the contents of their messages so that filters cannot see the incriminating words they contain. SpamSieve can decode and look inside these messages. Optionally it can mark them all as spam, on the theory that legitimate senders do not try to obscure their messages.
  • SpamSieve keeps track of how accurate it is, how many good and spam messages you receive, and how these numbers change over time.
  • Turn off new-mail notification in your e-mail program, and let SpamSieve notify you only when you receive non-spam messages.
  • The corpus window and log let you see how each spam message was caught.
  • Unlike server-based spam filtering services, your mail data stays on your own Mac, so your privacy is preserved.
  • SpamSieve supports AppleScript, so you can connect it to additional apps and fully integrate it into a custom workflow.

What's new in SpamSieve

Version 2.9.39:
  • Made various changes to improve SpamSieve’s filtering accuracy.
  • When you select spam messages in Apple Mail, the message list text is more readable through a variety of highlight colors.
  • Improved the following sections of the manual:
  • Added the Processing Messages Before SpamSieve and Setting Up Airmail 1-3 sections of the manual.
  • Worked around a change in the forthcoming macOS 10.15.4 that could prevent Mail from loading SpamSieve’s plug-in if you had relocated your home folder to another volume. If Mail reports an error loading the plug-in, choose Install Apple Mail Plug-In from the SpamSieve menu to update it.
  • Worked around an Apple Mail bug that could, in rare cases on macOS 10.15, cause spam messages to be marked as spam but not moved to the Spam mailbox. If this is happening for you, choose Install Apple Mail Plug-In from the SpamSieve menu to enable the workaround.
  • A small percentage of Apple Mail users are seeing a macOS 10.15 bug where a rule that is supposed to move messages to an IMAP or Exchange mailbox instead deletes them. If this is happening for you, make sure that your SpamSieve rule is set to move the messages to a local mailbox under On My Mac (as recommended in the Setting up Apple Mail section of the manual) rather than to a mailbox on the mail server.
  • A small percentage of Apple Mail users are seeing a macOS 10.15 bug where moving a message to an IMAP or Exchange mailbox (either via drag-and-drop or via AppleScript, as SpamSieve does) instead deletes it. If this is happening for you, you can use the Change Settings command to set SpamSieve to (a) move messages trained as spam to a local Spam mailbox (this is the default); and (b) not move messages trained as good back to the inbox (you can instead copy them by Option-dragging or using the menu command).
  • SpamSieve now includes an experimental feature to save backup copies of the messages that it has processed. This can help prevent data loss if you are one of the unlucky users affected by a bug in the macOS 10.15 version of Apple Mail that can delete messages when moving them from one mailbox to another. The bug is not actually related to SpamSieve and also manifests when it’s not installed. However, training messages with SpamSieve is a common reason that Mail would be asked to move messages, possibly triggering the bug. And since SpamSieve sees the messages, anyway, it’s in a good position to help mitigate the bug. For more information about backups and how to enable them, please see the Backing Up Messages section of the manual.
  • If you are running into a bug in macOS 10.15 where Mail hangs for 10+ seconds during launch, the If Apple Mail Is Running Slowly section of the manual now describes how you can work around this by disabling and re-enabling SpamSieve’s plug-in.
  • Worked around an Apple Mail bug that could cause the Preferences window to be blank on macOS 10.15, making it impossible to enable SpamSieve’s plug-in or to access other Mail settings.
  • When installing the Apple Mail plug-in, SpamSieve will now warn you if Mail’s files are stored on a different volume than your home folder, which would prevent Mail from loading the plug-in on macOS 10.14 or later.
  • If SpamSieve detects that macOS’s AppleScript system files are damaged, which can prevent training from working, it will now recommend that you reinstall macOS.
  • After installing the Apple Mail plug-in, we recommend clicking the Quit and Show Instructions button. If you opt not to do this, the other button is now titled Continue rather than Cancel, to better reflect that the plug-in has still been installed and still needs to be enabled.
  • There’s now an esoteric preference to mark Outlook messages as unread after filtering, to work around a mysterious issue where moving a message to another folder caused it to be marked as read.
  • SpamSieve now logs to Console to help you detect inefficient regexes that slow down rule matching.
  • Revised the Apple Mail and Postbox plug-ins for new macOS notarization requirements.
  • Fixed a bug where training a message as good in Apple Mail could switch to displaying the inbox instead of moving the message to the inbox.
  • Fixed a bug where SpamSieve could warn you that the Apple Mail plug-in was not enabled if Mail relaunched while SpamSieve was in the process of uninstalling.
  • Fixed a bug where relaunching Apple Mail while SpamSieve was reminding you to enable the plug-in could result in a duplicate alert being shown.

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How would you rate SpamSieve app?

173 Reviews of SpamSieve

See all
Foulger
19 August 2019
Version: 2.9.37

Most helpful

Apple mail without spamsieve is like being married with no wife.
(2)
ken-31
15 March 2020
Version: 2.9.39
very difficult to use. Doesnt catch persistent spam. use macs own Mail instead. Much better.
(1)
Show comment (1)
4
ben-marko
25 December 2019
Version: 2.9.38
Good app, but has been very broken since upgrading to Catalina. The latest update didn't fix it... :(
(0)
Show comments (3)
5
richard-219
26 November 2019
Version: 2.9.38
Just excellent. Effective and easy to tweak filters.
(0)
5
DragonMaster
08 September 2019
Version: 2.9.37
Hate Spam? Distrust your servers decision as to what is spam? This app is your best alternative! Hugely accurate. Learns quicker than you do. Support excellent. Yes it works just great in Catalina!
(0)
Foulger
19 August 2019
Version: 2.9.37
Apple mail without spamsieve is like being married with no wife.
(2)
5
Gilles9
19 August 2019
Version: 2.9.37
Great software, always up to date quickly for new MacOs Outstanding support
(1)
5
tim-lueth
13 August 2019
Version: 2.9.36
Changed my life. Suddenly no more SPAM mails (>80 per day). Email is usable again. Amazing that there was no solution from Apple!
(1)
5
msandman1943
09 June 2019
Version: 2.9.36
After linking to an insecure network overseas, I was getting a hundred or more spam messages every day, many of them offensive. With SpamsSieve, they're gone. You do need to follow the installation instructions precisely. And... do take the time to train the software to recognize your particular flow of spam. (It's all there is intro well-written but lengthy step-by-step instructions.) It's also important to monitor the Spam folder every day for the first couple of weeks or so to catch false positives and train SpanSieve to not delete a few specific email senders. (using version 2.9.36 - June 2019) You may need to switch your iPhone/iPad email from "Push" to "Fetch every 15 minutes" for new mail. That way, your Mac will discard the spam before it gets to your mobile device. The downside is that there can be as much as a 15-minute delay on your mobile device unless you go to settings and fetch manually when you're expecting an urgent email.
(1)
5
facebook-480
22 March 2019
Version: 2.9.35
After training and having used for a few months now, it is currently almost faultless. Currently no false positives (identifying good email as spam), barely any false negatives - way, way better than Gmail or Ourlook. Because (by design) it runs locally on your main device, control and security are maximised, but it means it's a bit fiddly to set up and other devices may pick up spam if the main device hasn't processed the emails on the IMAP server. For that reason, would love a cloud-based version.
(1)
5
Aargl
20 December 2018
Version: 2.9.35
How could we live without it? ;-)
(1)