DMARC Protection in Japan

Secure your domain against phishing, spoofing, and brand impersonation with DMARC enforcement.

Japan has become a primary target for global email-based cybercrime. In the first half of 2025 alone, the National Police Agency reported a record 1.2 million phishing cases, putting the country on track for its highest annual total in history. With financial losses from fraud reaching ¥3.22 trillion JPY in 2024, DMARC enforcement has moved from a “technical option” to a national economic priority for Japanese organizations.

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Email Spoofing in New Zealand is a Major Threat

Why Japan Needs DMARC Protection

The “Enforcement Gap”

While 95% of Japanese domains have SPF, only 9.2% actually block spoofed emails. Most organizations are in “monitoring-only” mode, leaving them defenseless against active attacks.

Brand Trust is at Stake

Japanese society operates on a high level of mutual trust. Attackers exploit this “good nature” by impersonating trusted corporate and government brands.

Surging Phishing Kits

Cybercriminals are increasingly deploying localized phishing kits targeting Japanese banks, securities firms, and logistics providers.

DMARC for Japanese Organizations by Industry

Banking & Securities

The financial sector is the primary target for online banking fraud, which saw a 73% jump in early 2025. While 97% of banks have DMARC records, 66.7% fail to enforce “Reject” policies, leaving customers vulnerable to sophisticated wire-transfer scams.

Healthcare

Healthcare & Pharmaceuticals

This is the most critical sector. 0% of analyzed healthcare domains currently enforce DMARC rejection. Attackers can easily spoof hospital mastheads to harvest patient data or send fake medical billing notifications.

Government & Public Sector

As Japan advances its “Society 5.0” digitization, over 60% of government domains remain stuck in monitoring mode. DMARC is now mandatory for government agencies to prevent spoofed tax and pension notices.

Manufacturing & Supply Chain

METI now requires many manufacturers to include DMARC in transaction conditions. This secures the supply chain against BEC (Business Email Compromise) that could disrupt critical production lines.

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DMARC Compliance & Government Mandates in Japan

METI Cybersecurity Rating System

Starting in FY2025, the Ministry of Economy, Trade and Industry is implementing a 5-level rating system. High-level certification will likely require enforced email authentication (DMARC p=reject).

Active Cyber Defense Law (2025)

This landmark law empowers proactive defense for critical infrastructure. DMARC reports are essential evidence for the mandatory incident reporting.

Global Sender Requirements

Following the 2024 mandates from Google and Yahoo, DMARC compliance is a baseline requirement for any Japanese business sending bulk mail to global or domestic recipients.

Top DMARC Providers in Japan (2025)

The Japanese market features several providers that help bridge the gap between simple publication and active enforcement.

1. PowerDMARC

 G2 Rating: 4.9/5

Target Audience: Well-suited for SMBs, large Enterprises, Government entities, and MSPs.

Best for: SMBs, Enterprises, Government agencies, MSPs & MSSPs

About PowerDMARC

PowerDMARC is a highly-rated, all-inclusive domain security and DMARC management platform. It streamlines the deployment, oversight, and enforcement of DMARC, SPF, DKIM, MTA-STS, TLS-RPT, and BIMI through one cohesive dashboard. Additionally, PowerDMARC features a dedicated MSP partner program that provides white-labeling and specialized advantages for channel partners.

Pros

  • Complete “full-stack” protection for email and domain identity.

  • Managed hosting for various authentication protocols.

  • Sophisticated AI-driven threat intelligence.

  • Advanced SPF optimization utilizing Macros.

  • Granular analytics for DKIM performance.

  • Encrypted (PGP) forensic reporting for enhanced privacy.

  • Extensive white-label options for MSPs and service providers.

Pricing

  • Pricing starts at $8/month for a basic plan (supporting up to 5 domains).
  • Free Trial is available.
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2. EasyDMARC

 G2 rating: 4.8/5

Best For: SMBs and agencies seeking clear DMARC visibility paired with integrated threat reporting and DNS health checks.

Overview: EasyDMARC delivers a comprehensive toolkit for email authentication, featuring monitoring, reporting, and support for SPF, DKIM, MTA-STS, and TLS-RPT. The platform utilizes dashboards and analyzers to provide a holistic view of domain health.

Pros & Cons

  • Pros: Robust monitoring for DMARC, SPF, and DKIM; includes generation tools for MTA-STS and TLS-RPT; features phishing link detection, reputation tracking, and domain scanning.

  • Cons: MTA-STS and TLS-RPT require manual DNS configuration rather than being fully hosted; lacks DKIM analytics and integrated global threat intelligence; no encryption for forensic reports; limited MSP white-labeling options.

Free Trial: Yes

Starting Price: $35.99

3. Sendmarc

 G2 rating: 4.9/5

Best For: Organizations seeking white-glove implementation support and enterprises needing comprehensive authentication suites.

Overview: Sendmarc is a full-service platform for DMARC, SPF, DKIM, and BIMI. It focuses on automating policies and simplifying compliance with global standards through threat detection and detailed reporting.

Pros & Cons

  • Pros: Real-time threat insights; holistic management of all primary protocols; guided MTA-STS/TLS-RPT setups; proprietary breach detection; 14-day trial for high-tier features.

  • Cons: Limited integration with external threat intelligence; no hosted MTA-STS management; pricing is not publicly listed.

Free Trial: Yes

Starting Price: Contact sales for Advanced/Premium tiers.

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4. dmarcian

 G2 rating: 3.5/5

Best For: Teams requiring in-depth reporting, specialized training, and expert guidance throughout the DMARC deployment process.

Overview: Founded by a co-author of the DMARC standard, dmarcian is a management platform dedicated to helping organizations transition to DMARC. It focuses on transforming complex DNS data into actionable workflows and clear insights.

Pros & Cons

  • Pros: Full deployment services for SPF, DKIM, and DMARC; industry-leading educational materials and professional support; provides a suite of domain tools and a full-featured trial.

  • Cons: Includes an SPF surveyor for validation but lacks active SPF optimization tools; does not provide management or hosting for MTA-STS and TLS-RPT; no services for BIMI deployment.

Free Trial: Yes

Starting Price: $24

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5. onDMARC

 G2 rating: 4.8/5

Best For: Smaller teams seeking an intuitive, guided experience to achieve DMARC enforcement with reliable support.

Overview: Developed by Red Sift, onDMARC is a specialized solution for email authentication and security. It is designed to accelerate the journey toward full enforcement through a user-friendly interface, effectively stopping phishing attacks while enhancing overall email deliverability.

Pros & Cons

  • Pros: Highly accessible setup and user experience; step-by-step roadmap from initial discovery to active enforcement; managed services encompassing DMARC, SPF, DKIM, MTA-STS, and BIMI; all plans include a free trial period.

  • Cons: SPF optimization utilizes a “flattening” technique rather than Macros-based optimization; complementary tools are restricted to basic SPF and BIMI checking.

Free Trial: Yes

Starting Price: $35

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Why Japanese Organizations Choose PowerDMARC

From Compliance to Active Defense

Effortlessly transition from the common “comfort trap” of p=none (monitoring) to p=reject (enforcement) using AI-driven threat modeling that protects your brand without disrupting business-critical emails.

Localized Insights & Intelligence

Gain granular visibility into the specific phishing surges and spoofing campaigns targeting Japanese infrastructure, with reports tailored to local threat vectors.

Solving DNS Complexity

Our SPF Macro-optimization technology allows large Japanese enterprises and conglomerates to bypass the “10-lookup limit,” ensuring third-party SaaS and marketing tools don’t break your email delivery.

Compliance Ready

Fully aligned with the recent mandatory requirements for credit card providers and critical supply chain partners.

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PowerDMARC Services Across Japan

Regional Presence: Serving all major economic hubs.

Language & Local Support: Access a specialized, multilingual interface (Japanese and English) and expert support teams who understand the unique nuances of the Japanese digital landscape.

Trusted Partner Network: We work alongside leading Japanese MSPs and system integrators to provide local expertise and white-glove onboarding for enterprises of all sizes.

 
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FAQs: DMARC in Japan

While DMARC is not currently a blanket legal requirement for every private business, it is effectively mandatory for government agencies under the “Unified Standards for Information Security Measures.” Additionally, the Ministry of Economy, Trade and Industry (METI) and the National Police Agency have issued strong directives requiring credit card providers and critical semiconductor manufacturers to implement DMARC. With the rollout of Japan’s Corporate Cybersecurity Rating System in fiscal year 2025, DMARC enforcement has become a de facto requirement for organizations looking to maintain high trust ratings and secure supply chain partnerships.

Recent data from 2025 indicates that approximately 74.6% of major Japanese domains have published a DMARC record, showing high awareness. However, Japan faces a significant “Enforcement Gap.” Only about 9.2% of these domains have reached the p=reject policy, the only setting that actively blocks spoofing. The majority (55%) remain in “monitoring mode” (p=none), which provides visibility into attacks but does not stop them from reaching the inbox.

Organizations should aim for p=quarantine or p=reject. In the Japanese market, many companies use p=none as a permanent “comfort trap,” but this is a “Paper Tiger” policy; it allows you to see the 1.2 million phishing cases reported annually but leaves your brand’s digital front door unlocked. To align with METI guidelines and protect against the ¥3.22 trillion annual fraud epidemic, moving to active enforcement is essential.

Using an automated platform like PowerDMARC, most Japanese organizations can transition from initial monitoring to full p=reject enforcement within 30 to 90 days. Our AI-driven threat modeling is specifically designed to handle the complex sender environments common in Japanese enterprises, ensuring that legitimate business correspondence, such as invoices and client notices, continues to deliver while unauthorized spoofs are blocked.

Select a provider that offers full automation to alleviate the burden on your internal IT team. Key features should include SPF Macro-optimization (to bypass the 10-lookup limit often hit by large conglomerates), Hosted MTA-STS for transport layer encryption, and a platform that integrates with local frameworks like the METI Cybersecurity Management Guidelines. Your provider should help you bridge the gap from “checking the box” to “active defense.”

Protect Your Japanese Domain with DMARC Enforcement

Don’t let your brand be the next headline in the record-breaking phishing surge. Move from passive visibility to active defense today and safeguard your reputation from the growing digital siege.

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