In a campaign, a customer's file is reviewed to determine the offer or solicitation to send to the customer and the time such will remain open, and an e-mail message is sent to the customer that contains the offer or solicitation in text, a packet, or a URL address for a protected personalized web page...http://www.google.com.tw/patents/US6868395?utm_source=gb-gplus-share專利 US6868395 - Business transactions using the internet
