The Bottom Line
- Cactus Spam Filter works seamlessly without configuration
- Spots junk mail precisely using Bayesian statistics
- Cactus Spam Filter filters spam, but cannot further categorize good mail
- Junk can only be marked in the subject by Cactus Spam Filter
- Cactus Spam Filter supports POP accounts only
- Cactus Spam Filter filters POP email accounts for spam.
- Using Bayesian statistics, Cactus Spam Filter is very precise marking junk after some training.
- Cactus Spam Filter labels detected spam in the Subject for further filtering.
- Intercepting email traffic automatically, Cactus Spam Filter works with any email client.
- A training area displays all emails and lets you mark as spam or good mail.
- You can also train Cactus Spam Filter with old emails (both good and spam) saved ad .eml files.
- Cactus Spam Filter supports Windows 98/ME/NT/2000/3/XP.
Guide Review - Cactus Spam Filter 2.13 - Free Spam Filter
Cactus Spam Filter combines all these characteristics solidly, but a few oddities counteract. Using Bayesian statistics, Cactus Spam Filter can identify the junk — at least after some training, a bit more than with other programs in my testing.
Unfortunately, Cactus Spam Filter can mark spam only in the message Subject, though this is a minor problem. If you use anything but POP, you'll find Cactus Spam Filter restriction to POP accounts more limiting. But with these POP accounts, Cactus Spam Filter does indeed work sans configuration.
If your email program is not yet listed, all you have to do is add it and Cactus Spam Filter will automatically filter all mail you download in it. You can — or must, rather — then train mistakes in Cactus, which could be a tad easier: Cactus Spam Filter always displays the full list of filtered messages with no way to search. Sorting by spam score can prove helpful, though.