by Scott Petry - Founder & Senior Vice President of Products and Engineering, Postini - Monday, 11 April 2005.
The detection of minimal content spam and DHAs needs to occur in real time, at the SMTP connection point, in order to prevent them from ever reaching the email gateway. Fortunately there are commercially available solutions today that can prevent email connection point attacks and block spam from shifting IP addresses. There is also technology that can dynamically recognize the legitimate IP addresses of organizations, for example, and perform a real time IP address assessment helping to minimize false positives. Itís important that you consider these newly evolving threats as you evaluate your existing anti-spam tools and plan your email security strategy for protecting the critical communications so vital to your firm.