①A sender must not send specified electronic mail to any person other than the following persons:

②A person who has received the notice referred to in item (i) of the preceding paragraph must, as specified by Order of the Ministry of Internal Affairs and Communications and Cabinet Office Order, retain records proving that there was a request for the sending of specified electronic mail or consent to its sending.

③If a sender has received from a person set forth in any of the items of paragraph (1), as specified by Order of the Ministry of Internal Affairs and Communications and Cabinet Office Order, a notice to the effect that the person requests that specified electronic mail not be sent (or, in the case where the person requests that specified electronic mail concerning certain matters not be sent, a notice to that effect) (including when the entrusting party has received that notice), the sender must not send specified electronic mail against the intention indicated in that notice; provided, however, that this does not apply in the case where advertisement or publicity is conducted incidentally in electronic mail sent, based on the intention of the person who receives the electronic mail, with a principal purpose of an act other than advertisement or publicity, or in any other similar case specified by Order of the Ministry of Internal Affairs and Communications and Cabinet Office Order.

When sending specified electronic mail, a sender must, as specified by Order of the Ministry of Internal Affairs and Communications and Cabinet Office Order, ensure that the following matters (excluding, in the case specified by Order of the Ministry of Internal Affairs and Communications and Cabinet Office Order referred to in the proviso to paragraph (3) of the preceding Article, the matter set forth in item (ii)) are correctly displayed on the screen of the communications terminal used by the person who receives it:

A sender must not send specified electronic mails falsifying the following information on the sender (hereinafter referred to as "Sender Information") for sending or receiving electronic mails:

A sender must not send electronic mails to fictitious electronic mail addresses for the purpose of sending many electronic mails for their own or others' sales activities.

Where the Minister for Internal Affairs and Communications (hereinafter referred to as "Minister") and the Prime Minister (or the Minister, where it concerns the transmission of electronic mails to fictitious electronic mail addresses) find that with respect to transmission of electronic mails, including simultaneous transmission of specified electronic mails to many persons, a sender does not comply with the provisions of Article 3 or Article 4, or where they find that a sender has sent electronic mails using false Sender Information or electronic mails to fictitious electronic mail addresses, and when they find that it is necessary for preventing disturbances upon transmission and reception of electronic mails, they may order that sender (or, in the case where an entrusting party for those electronic mails has carried out part of the operations relating to the sending of the electronic mails, such as receiving the notice referred to in Article 3, paragraph (1), item (i) or (ii) or retaining the records referred to in paragraph (2) of that Article for the sending of the electronic mails, and it is found that there are grounds attributable to that entrusting party with respect to the sending of the electronic mails, that sender and that entrusting party) to take necessary measures for improving the methods for electronic mail transmission.

①A person who has received specified electronic mail may, when the person finds that specified electronic mail has been sent in violation of the provisions of Articles 3 through 5, petition the Minister or the Prime Minister to take appropriate measures.

②When a minister set forth in either of the following items has received a petition pursuant to the provisions of the preceding paragraph (excluding when the petition is made to the Minister and the Prime Minister), that minister is to promptly notify the minister specified in that item to that effect:

③A person who is offering electronic mail services may, when the person finds that electronic mail has been sent to fictitious electronic mail addresses in violation of the provisions of Article 6, petition the Minister to take appropriate measures.

④The Minister or the Prime Minister must, when they have received a petition pursuant to the provisions of paragraph (1), implement necessary investigation, and when they find it necessary based upon results of the investigation, take measures based upon this Act and other appropriate measures.

⑤The Minister must, when they have received a petition pursuant to the provisions of paragraph (3), implement necessary investigation, and when they find it necessary based upon results of the investigation, take measures based upon this Act and other appropriate measures.

A sender of specified electronic mails must, in good faith, process complaints, inquiries, etc. on their transmission of specified electronic mails.

①A telecommunications carrier (meaning a telecommunications carrier stipulated in Article 2 item (v) under the Telecommunications Business Act; the same applies hereinafter) offering electronic mail services must endeavor to carry out, for users of the services, the provision of information on services that contribute to prevention of disturbances upon transmission and reception of electronic mails caused by specified electronic mails, electronic mails using false Sender Information, or electronic mails to be sent to fictitious electronic mail addresses (hereinafter referred to as "specified electronic mail, etc.").

②A telecommunications carrier offering electronic mail services must endeavor to develop or introduce technologies for contributing to prevention of disturbances upon transmission and reception caused by specified electronic mail, etc.

A telecommunications carrier may, in cases where electronic mails using false Sender Information have been sent and therefore it is considered that there is a risk of causing disturbances in smooth offering of its electronic mail services or of causing disturbances upon transmission and reception of electronic mails for its users, in cases where many electronic mails addressed to fictitious electronic mail addresses have been simultaneously sent and therefore it is considered that there is a risk of causing disturbances in smooth offering of its electronic mail services, or where it is considered that there is reasonable grounds to refuse the provision of electronic mail services for prevention of disturbances upon transmission and reception of electronic mails, refuse to provide a person who sends electronic mails that have a risk of causing the disturbances with electronic mail services to the extent of preventing the disturbances.

The Minister is to endeavor to give necessary instructions and advices to a general incorporated association that conducts operations including provision of information and services contributing to prevention of disturbances upon transmission and reception of electronic mails caused by specified electronic mail, etc. for its member telecommunications carriers.

The Minister, at least once a year, discloses the status of research and development on technologies that contribute to prevention of disturbances upon transmission and reception of electronic mails caused by specified electronic mails, etc. and the introduction status of the technologies by telecommunications carriers that offer electronic mail services.