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SpamSieve for Mac

Download Editors' Rating:
Average User Rating:
out of 146 votes

Quick Specs

  • Version:
  • Total Downloads:
  • Date Added:
    Sep. 12, 2013
  • Price:
    Update; $30.00 to buy
  • File Size:
  • Downloads Last Week:
  • Platform:
  • Product ranking:

Editors' Review


SpamSieve is a powerful, popular spam-filtering app that can help you greatly reduce unwanted e-mails in Mail, Entourage, MailForge, Outlook 2011, and other e-mail clients. Because SpamSieve uses Bayesian filtering (a process that looks at the statistical probability of every word in an e-mail) and you train it using your own e-mail, the app actually becomes more effective over time. It learns not just how to better identify ever-changing spam but also how to zero in on the peculiarities of your own legitimate e-mail (whether that's using the names of your family members or your friends' frequent and obscure references to the "Halo" backstory).

SpamSieve integrates directly with your e-mail client, which is especially helpful if you use multiple clients or need to move from one client to another. You train SpamSieve using easy "Train as Good" and "Train as Spam" commands (from the menu bar, or with a keyboard shortcut, much like Mail's "Mark as Junk"), although when you initially set up the app, you'll need to make several changes manually in your client's preferences. Fortunately, SpamSieve has a clear and extensive manual, which even includes instruction on how you can use SpamSieve to help filter spam on your iPhone, iPad, or iPod Touch. For SpamSieve to be effective at first, you also have to spend a few minutes training it by hand with 100 or more messages. Combined with SpamSieve's price tag, this might be too much involvement for casual users, but for anyone who deals with a lot of spam despite their client and ISP's built-in filtering, it can be time and money well-spent.

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Publisher's Description

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User Reviews

Results 1–1 of 1

4 stars

"This spam filter really works"

September 21, 2013  |  By kdanti

 |  Version: SpamSieve 2.9.8


Once trained spam email that makes to my inbox is very infrequent. Much better than all other spam filters I use. This included spam assassin and apple mail spam filter. It's really nice to have a spam free inbox. Something I haven't had since the invention of spam.


The $30 cost for a spam filter seems high. If this was a lifetime subscription it might be more acceptable. This cost may make me live with the poorer filters that cost me nothing.

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Full Specifications

What's new in version 2.9.8
  • SpamSieve is now compatible with Mac OS X 10.8.5.
  • Made various changes to improve SpamSieve's filtering accuracy.
  • The Train as Good command in Apple Mail now considers the message's CC recipients when determining the proper account inbox.
  • The installer is better at working around incorrect Apple Mail folder permissions.
  • Improved the Why is SpamSieve not catching my spam?, Open Log, Setting Up Outlook, SpamSieve and Multiple Macs, and various other sections of the manual.
  • The AppleScript for Setting Up a Spam Filtering Drone runs faster now.
  • Automatic software updates no longer fail if Hazel is set to move files in the Downloads folder.
  • The Help menu now includes direct links to important sections of the manual.
  • Removed unused code from the Apple Mail plug-in.
Publisher C-Command Software
Publisher web site http://c-command.com
Release Date September 12, 2013
Date Added September 12, 2013
Version 2.9.8
Category Communications
Subcategory E-mail Software
Operating Systems
Operating Systems Mac OS X 10.4 Intel/PPC, Mac OS X 10.5 Intel/PPC, Mac OS X 10.6/10.7/10.8
Additional Requirements
  • Apple Mail, Emailer, Eudora, Entourage, GyazMail, Mailsmith, Outlook Express, PowerMail, or Thunderbird
  • Download Information
    File Size 14.29MB
    File Name SpamSieve-2.9.21.dmg
    Total Downloads 8,663
    Downloads Last Week 14
    License Model Update
    Limitations 30 days
    Price $30

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