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| Spam Filter | Street price1 | Accuracy2 (higher is better) | False positives3 (lower is better) | E-mail clients supported4 |
Aladdin Systems SpamCatcher 3.0.1 | $30 | 91.1% | 4.3% | Any POP3 e-mail client; integrates with Outlook |
Audiotrieve InBoxer 1.1 | $28 | 98.7% | 3.0% | Integrates with Outlook |
| Best Buy Cloudmark SpamNet | $485 | 98.2% | 1.6% | Integrates with Outlook |
Lyris Technologies MailShield 3.11 | $60 | 62.7% | 13.0% | Any POP3 e-mail client |
| Network Associates McAfee SpamKiller 5.0 | $35 | 70.7% | 22.3% | Any POP3 e-mail client |
| Panda Software Platinum Internet Security | $806 | 75.3% | 37.0% | Integrates with Outlook |
| Sunbelt Software IHateSpam 4 for Outlook | $20 | 96.2% | 2.4% | Integrates with Outlook |
| Symantec Norton AntiSpam 2004 | $40 | 79.5% | 5.2% | Integrates with Outlook |
Trend Micro PC-cillin Internet Security 2004 | $50 | 86.3% | 6.9% | Any POP3 e-mail client |
1 Price is rounded to nearest whole dollar and includes one year of spam filter updates.
2 Percentage of spam messages caught by filter.
3 Percentage of nonjunk messages mistakenly filtered as spam.
4 By tested version. Some companies sell versions that integrate with other clients.
5 Cloudmark's service costs $4 per month.
6 Panda offers a version with six months of updates (instead of a full year) for $40.
See "How We Tested Spam Filters" for details on how we tested these products.
HOW WE TEST: