A messaging system uses the standard email subject line to control where a message gets delivered, when a message gets delivered and the appearance of a message when it gets delivered. This enables a company to use its standard intranet email system as a pseudo real-time messaging transport with a range...http://www.google.es/patents/US6185603?utm_source=gb-gplus-sharePatente US6185603 - Method and system for delivery of e-mail and alerting messages
Method and system for delivery of e-mail and alerting messages