Research
Web Mail Provider: SPAM Filtering Effectiveness Research
By: Sean Campbell & Scott Swigart
Objective
The objective of this research study was to compare the SPAM filtering capabilities of Microsoft Hotmail, Google Gmail, and Yahoo! Mail to determine the effectiveness of SPAM filtering for each provider. The key measurements for this research are the quantity and percentage of SPAM in the inbox
Executive Summary
Leading Web mail providers use sophisticated SPAM filtering mechanisms to keep unsolicited email messages out of user inboxes. Microsoft Hotmail and Google Gmail are approximately equally effective at filtering out SPAM, and substantially more so than Yahoo! Mail. All three providers reduce SPAM compared to unfiltered accounts.

