Clara offers spam filter

Internet service provider is offering spam and anti-virus filtering to small businesses, after developing an e-mail...

Internet service provider is offering spam and anti-virus filtering to small businesses, after developing an e-mail filtering technology which it claims is more effective than external e-mail filtering services.

The service allows businesses with few IT staff to set up spam and virus filtering which needs little maintenance but gives IT administrators control over company spam and virus policies. worked with supplier Checkbridge to develop its own system, which went live last month, after research showed it would be difficult to integrate managed filtering services such as MessageLabs and BlackSpider into its customer billing systems.

"Small businesses like it because it requires virtually no set-up. It takes an hour or so. Large companies like it because it is tiered. The site administrator can look after the site settings and say what is allowed in and what is not," said Neil Levine,'s group chief technology officer.

The system uses two open source virus scanners and Trend Micro's virus scanning engine. It uses the Cloudmark open source scanner to identify spam based on its structure rather than on key words.

"It looks for malformed header information, for example. This is a much better indication of spam that whether it contains the word Viagra," said John Turley, managing director of Checkbridge, who oversaw the development of the system.



Enjoy the benefits of CW+ membership, learn more and join.

Read more on Antivirus, firewall and IDS products



Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to:




  • Dissecting the Hack

    In this excerpt from chapter three of Dissecting the Hack: The V3RB0TEN Network, authors Jayson E. Street, Kristin Sims and Brian...

  • Digital Identity Management

    In this excerpt of Digital Identity Management, authors Maryline Laurent and Samia Bousefrane discuss principles of biometrics ...

  • Becoming a Global Chief Security Executive Officer

    In this excerpt of Becoming a Global Chief Security Executive Officer: A How to Guide for Next Generation Security Leaders, ...