E-MAIL DELIVERY SYSTEM USING METADATA ON E-MAILS TO MANAGE VIRTUAL STORAGE

摘要

An e-mail system comprising a memory and an e-mail processing element is a provided. The memory stores e-mail having associated metadata that represents a state of processing of the e-mail. The e-mail processing element reads the e-mail and determines a next action for delivery of the e-mail based on the metadata. A system comprising a storage unit and a processor is provided. The storage units stores a messages to be electronically sent. The messages include a metadata describing information about the messages. The storage unit includes local storage that stores a first amount of information, less than said first amount of information, describing non-imminent messages. The storage unit also includes remote storage storing additional information about the messages. The processor is operated to determine information about each message, and manage an amount of information about the messages that are stored locally.