The SenderBase collects data on more than 25 percent of the world ’ s email and web traffi c.
Over 100,000 organizations, including the largest networks in the world, contribute information
on over 5 billion queries per day. The SenderBase network of organizations gives mail and web
administrators real - time visibility into security threats from around the globe.
The simple breadth of data makes for a great sample size. There are more parameters to
look at than just a high volume of mail being sent. You might assume that any organization
sending a high volume of email would be a spam house. However, there are legitimate
senders of high volumes of email, such as senders delivering news alerts. What about a large
retailer such as Amazon.com, who might send out hundreds of thousands of emails, for
both orders and advertisements? Volume cannot be the only indicator. If you look at other
parameters in conjunction with the volume, a more accurate picture of the emailer emerges.
These parameters might include end user complaint data, zombie characteristics, and
country of origin.
Cisco IronPort has more than three years operational experience managing data quality
and integrity. It developed the Data Quality Engine to assess the quality of a given data feed
by cross - correlating multiple different data streams with known references or benchmarks.
This system allows the SenderBase to access questionable data streams and weigh them
based on quality