Email has become the dominant form of business communication, rivaling if not exceeding the importance of voice networks. Indeed, email has had such an extraordinary impact that, like the fax and ATM, it’s hard to imagine life before its widespread adoption over the last decade. The very power of the medium has also attracted a disturbingly large and growing number of security threats – spam, fraud, viruses, regulatory violations and intellectual property theft. Email infrastructure must scale to meet the growth of the medium, and at the same time respond to the growing email related threats. Throughput at the mail gateway has been growing at nearly 100 percent per year driven by three compounded factors: (1) more email users (2) increased number of emails sent per user per day, and (3) rapidly growing message sizes due to the increasing adoption of HTMLemail and large attachments. more disturbing trend has also fueled the growth in perimeter email volumes – the exponential and unending growth in volume of illicit messages and attacks. Traditional mail gateways are built on architectures that are as much as 20 years old. These old architectures have inherent limitations with queue design and implementation that make them unable to meet the growing mail throughput requirements and the demand for more sophisticated spam, virus and policy filtering.
| Type: | Whitepaper |
| Posted: | August 31, 2006 |
| Format: | |
| Length: | 6 pages |
| Language: | English |
| Topic: | Networking; Security |
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