FIELD: information technology.
SUBSTANCE: session control information is generated from request information relating to web-based electronic mail sent as HTTP data, and if request information coincides with a predetermined event of the beginning of the session for each web-based electronic mail service, the transmission server adds a new record to the session control information. On the other hand, if request information coincides with a predetermined event for operation with data for each web-based electronic mail service, the transmission server updates record data of the session control information.
EFFECT: providing a mechanism which enables to browse electronic mail.
13 cl, 20 dwg
