Patent ID: 8601074

Claim:
An electronic mail receiving apparatus that is to be used in a system including an electronic mail transmitting apparatus, the electronic mail receiving apparatus, and an electronic mail server which is configured separately from the electronic mail transmitting apparatus and the electronic mail receiving apparatus, the electronic mail receiving apparatus comprising: a communicating unit configured to execute a first-kind electronic mail communication performed via the electronic mail server, and a second-kind electronic mail communication performed not via the electronic mail server, the second-kind electronic mail communication using a communication session established between the electronic mail transmitting apparatus and the electronic mail receiving apparatus; and a mail output controller configured to control an outputting unit to output an electronic mail received from the electronic mail transmitting apparatus by the communicating unit; wherein the communicating unit includes: a first information transmitting portion configured to, in a first case where a first-kind electronic mail from the electronic mail transmitting apparatus is received by executing the first-kind electronic mail communication, transmit to the electronic mail transmitting apparatus, before the first-kind electronic mail is output by the outputting unit, first reception information indicating that the first-kind electronic mail is received; and a second information transmitting portion configured to, in a second case where a second-kind electronic mail from the electronic mail transmitting apparatus is received by executing the second-kind electronic mail communication performed not via the electronic mail server by using the communication session established between the electronic mail transmitting apparatus and the electronic mail receiving apparatus, transmit, to the electronic mail transmitting apparatus, second reception information indicating that the second-kind electronic mail is received by using the communication session.