Access notification for sender of electronic message involves detecting access to message by recipient by detecting access to data integrated into message dependent on access to electronic message

摘要

The access notification method involves associating message identification data (14) with the message (4) prior to accessing it, whereby data are integrated into the electronic message for message identification purposes and access to the message can be detected by detecting an access to the data integrated into the message dependent on the access to the electronic message. Independent claims are also included for the following: (a) a device for transmitting electronic messages (b) a communications system (c) a software program product for implementing the inventive method.