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We have split the Editor's Choice into the three separate anti-spam technology categories; software, managed service and appliance. Because there are so many e-mail environments out there, most administrators looking to deploy an anti-spam solution should by now have a fair idea which type of technology would suit their requirements.
Software winner: Symantec Brightmail, for ease of installation, configuration and administration as well as an excellent user interface and detailed -live" graphical reporting it would be hard to surpass these features.
Managed Service winner: Network Box, if security is a concern then Network Box has the bases covered, if availability and redundancy are your preferred choice then a trial of either MailGuard or MessageLabs may be on the cards.
Appliance winner: IronPort, strong security, redundancy and recently developed ease of installation with the new GUI make this appliance the choice in this review. For those with a tighter budget then perhaps one of the McAfee WebShield appliances may be considered and are still very worthy contenders.
Please note that these decisions were not based on accuracy testing. Given the Labs' extensive anti-spam testing experience, when being initially trialled/evaluated we would expect most anti-spam applications to run around 65 percent to 70 percent spam catch accuracy with very low to zero false positives in "default" or "out of the box" configurations.
Then, once given the benefit of being "tuned" or "tweaked" and having localised white and black lists applied they should run at about 85 percent to 92 percent. Remember each e-mail server environment and organisation's requirements are different therefore it would not be fair to try and compare the results based on limited tests and scenarios it's far beyond the scope of this review.
| Product & version | BitDefender v1.9 for MS Exchange 2003 | MIMEsweeper for SMTP 5.0 | eTrust Secure Content Manager 1.1 | GFI MailEssentials for Exchange/SMTP V10.1 | NetIQ MailMarshal 6.0.3. 8 | Symantec Brightmail anti spam version 6.01 |
| Company | Softwin / NetFreighters | Clearswift | Computer Associates | GFI Software | NetIQ | Symantec |
| Price | AU$315 for 10 users | 50 users AU$3000 incl. 1 year support | US$55 per node (for full suite) | 25 users AU$550, 100 users AU$1075, unlimited users AU$2150. | 25 users AU$1155, 50 users AU$1850, 100 users AU$3325, 250 users AU$6925, 500 users AU$12,000 | AU$19 per user; volume discounts available |
| Warranty | 30 days trial | 90 days software CD / 30 days installed software | 12 months | N/A | N/A | N/A |
| Operating System | XP Professional, Win2k server/advanced server or Windows 2003 | Windows 2003 Server Standard Edition, Windows XP Pro with SP1, Windows 2000 with SP2, SP3, or SP4 | Any Windows 2000/2003/XP operating system. | Windows 2000 or Above | Microsoft 2000/2003 Server, Solaris 8 or 9, Linux RedHat ES/AS 3.0 | |
| E-mail server software | Microsoft Exchange 2003 Server | Any | - | Any. Extra functionality in AD environments. | Any SMTP Mail Server | Exchange / Notes Foldering agent |
| Network requirements | TCP/IP | TCP/IP | SMTP | Hardware Sizing dependant on Email Volume | minimum 100mbit lan | |
| Support for address whitelists (Y/N) | Y | Y | Y | Y and Autowhites addresses based on recipient address of outbound email. | Y | Y |
| Support for address blacklists (Y/N) | Y | Y | Y | Y as well as DNS blacklists. | Y | Y |
| Support for keyword blocking (Y/N) | Y | Y | Y | Y | Y | Y |
| Support for embedded URL blocking (Y/N) | Y | Y | Y | Y | Y | Y |
| Support for attachment scanning (Y/N) | Y | Y | Y | N | Y | Y |
| Support for embedded image scanning (Y/N) | N | Y | N | Y | N | Y |
| Active HTML detection & blocking (Y/N) | Y | Y | Y | N | Y | Y |
| Integrated e-mail anti-virus (Y/N) | Y | N | Y | N | Y | Y |
| Type of scanning employed | heuristic,w/b lists, charset filter, url filter, keyword filter | N/A | AV, spam, URL filtering, keyword, profanity, file type, virus hoaxes, activex and Java applets | Bayesian, SPF, directory harversting, DNS Blacklist, blacklist, header checking and keyword checking. | Lexical Analasys | Reputation filters, URL filters, signature filters, heuristic filters, content filters, AV filters |
| Automated definition updates (Y/N) | Y | Y | Y | Y, for the Bayesian engine. | Y | Y |
This article was first published in Technology & Business magazine.
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