Legal System Concerning Spam

Main LAW

• Overview of Japanese Anti-Spam Law(:410KB)
• Act on Regulation of the Transmission of Specified Electronic Mail(:99KB)
• Ordinance for Enforcement of the Act on Regulation of the Transmission of Specified Electronic Mail(:70KB)
• Ordinance that establishes transmission methods subjected to the Act on Regulation of the Transmission of Specified Electronic Mail (Japanese only)
  - Two transmission methods are established in this ordinance. One is SMTP. Another one is SMS.

Law Interpretation

• Guidelines Concerning the Transmission, Etc. of Specified Electronic Mail(:1.3MB)

Enforcement

• MIC’s website concerning Anti-Spam(Japanese only)
• Anti-Spam Consultation Center(:236KB)
• Outcomes of the Law Enforcement(:24KB)
• Application of Penal Provisions of Japanese Anti-Spam Law(:88KB)

Statistics

• Spam Volume Trends in Japan

Technical Measures

Outbound Port 25 Blocking(OP25B)

• About OP25B(:124KB)
• Effect of OP25B in Japan(:203KB)

Sender Authentication Technologies

• About Sender Authentication Technologies(:156KB)
• Sender Authentication Technologies Manual(Japanese only)

Legal Matters Concering the Sender Authentication ,etc

Statistics

• The situation of Sender Policy Framework(SPF) in Japan
• The situation of DomainKeys Identified mail (DKIM) in Japan

Measures through Public-Private Partnerships

Anti-Spam mail Promotion Council(ASPC)

• About ASPC(:171KB)
• Website of ASPS(Japanese only)
• Anti-Spam Measures Handbook(Japanese only)
• Sender Authentication Technologies Manual(Japanese only)

Framework for Enhancement of International Cooperation

Multilateral Cooperation

• UCENET

Bilateral Collaboration

• Sharing Information of spammers with a foreign country(:314KB)

Other Relevant Policies

Smartphone Privacy Initiative(:3KB)