Spam Filter Comparison: Who makes the best spam filter?
Spam Filter Comparison: Who makes the best spam filter?
To find out, we asked our 25,000 registered users to take a 30-second anti-spam comparison survey. Over 1,200 people responded and rated their filters with a letter grade from A-F. The results for all filters with 3 or more responses (slightly over 1,000 responses for the top 50 systems) are summarized below and sorted with the highest rated on top. Dates of the responses are 6/29/06 – 7/20/06.
| Manufacturer | Product name | # responses | Grade |
| keir.net | K9 Spam Filter Software | 3 | A |
| Abaca | Email Protection Gateway | 3 | A |
| MX Logic | Email Defense | 4 | A |
| mailscanner.info | MailScanner | 19 | A- |
| popfile.sourceforge.net | PopFile | 3 | A- |
| assp.sourceforge.net | Anti-Spam SMTP Proxy (ASSP) | 4 | A- |
| Fastmail Unit Trust | FastMail | 4 | A- |
| Spam Arrest LLC | Spam Arrest | 8 | B+ |
| Cloudmark | Cloudmark Desktop | 17 | B+ |
| Vircom | modusMail – modusGate | 4 | B+ |
| Firetrust | Mailwasher Pro | 21 | B |
| Postini | Perimeter Manager | 17 | B |
| 45 | B | ||
| spambayes.sourceforge.net | SpamBayes | 21 | B |
| Commtouch | Anti-Spam Engine | 3 | B |
| Zone Labs | ZoneAlarm Internet Security Suite | 3 | B |
| SonicWALL | Email Security Appliances | 10 | B |
| Symantec | Brightmail Anti-Spam | 12 | B |
| c-command.com | SpamSieve | 10 | B |
| GFI Software | GFI Mail Essentials | 7 | B |
| Symantec | Norton AntiSpam | 34 | B |
| spamcop.net | SpamCop | 18 | B |
| Earthlink | SpamBlocker | 48 | B |
| AOL | AOL Mail | 134 | B- |
| Apple | Mac Mail | 51 | B- |
| Yahoo | SpamGuard | 76 | B- |
| spamassassin.apache.org | SpamAssassin | 56 | B- |
| various | RBL lists | 3 | B- |
| SurfControl | E-mail Filter 4 | 3 | B- |
| Symantec | Mail Security | 9 | B- |
| Symantec | Norton Internet Security 2006 | 74 | B- |
| Qurb | eTrust Anti-Spam (formerly Qurb) | 5 | B- |
| mozilla.com | Thuderbird built-in spam filter | 32 | B- |
| Microsoft | Exchange Server spam filter | 12 | B- |
| Barracuda Networks | Spam Firewall | 5 | C+ |
| Nuclear Elephant.com | DSPAM | 3 | C+ |
| TrendMicro | InterScan Suite | 3 | C+ |
| Symantec | AntiVirus for SMTP | 8 | C+ |
| Microsoft | Outlook desktop built-in | 99 | C |
| Trend Micro | PC-cillin | 22 | C |
| Microsoft | Hotmail | 39 | C |
| Verizon Online | Spam Detector | 5 | C |
| Sunbelt Software | iHateSpam | 9 | C |
| GWAVA | Guinevere | 4 | C |
| McAfee | SpamKiller 6 | 16 | C |
| sourceforge.net | AntiSpam Mail Filter | 3 | C- |
| Road Runner | Road Runner ISP filtering | 3 | C- |
| Eudora | Eudora | 4 | C- |
| Juno | Juno | 3 | D+ |
Source : http://www.junkfax.org
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