[Explanation of Invoices and Revised Electronic Bookkeeping Law] Accidents and Troubles That May Occur in the Manufacturing Industry

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PowerDMARC

last updated：Nov 25, 2025

Spelldata

Have you been receiving suspicious emails lately? Fake invoices from impersonation emails created by tools like ChatGPT are being sent to your company.

The invoice system will begin on October 1, 2023. Additionally, the revised Electronic Bookkeeping Act will become mandatory starting January 1, 2024. As a result, the entire industry has started to send invoices electronically. This raises the issue of "spoofing emails (phishing emails)." With the advent of generative AI like ChatGPT, it has become possible to create emails in natural-sounding Japanese, leading to an increase in cases where cybercriminals send sophisticated "fake invoices." If a fake email impersonating your company reaches your business partners or customers, the following problems may arise: - Personal information of employees or customers may be leaked, leading to lawsuits. - Important corporate secrets may be stolen and resold, causing your company to lose competitive advantage. - Company funds may be siphoned off. - Business partners may become infected with viruses through your company, resulting in huge compensation costs. (According to Article 709 of the Civil Code, your company may be deemed to have "not taken necessary measures" against spoofing emails and could bear liability for damages.) We have prepared a document that explains this situation in more detail and outlines potential solutions. Please download it and use it to ensure safe operations!

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basic information

【Contents Published in PDF】 ■What is Spoofing Email? ├What Spoofing Emails Target ├Liability for Damages from Spoofing Emails ├Domains Not Using Email Are Also Dangerous! └Countermeasures Against Spoofing Emails Are Recommended ■Technical Specifications ├SPF (Sender Policy Framework) ├DKIM (Domain Keys Identified Mail) ├DMARC (Domain-based Message Authentication, Reporting, and Conformance) ├BIMI (Brand Indicators for Message Identification) └MTA-STS (Mail Transfer Agent Strict Transport Security) ■What is PowerDMARC? ├A Service by the Company Menainfosec ├Utilizing Companies ├Why Choose PowerDMARC? ├Function Explanation ├Free Trial Period (Two Weeks, Extendable Up to One Month) ├Support System ├Costs by Plan └Implementation Schedule

Price information

Basic Plan: 20,000 yen (excluding tax) / year Plus Plan: 33,000 yen (excluding tax) / year Premium Plan: Contact us *The amount is per domain. *Spelldata is the exclusive distributor of PowerDMARC in Japan. The prices are the same as those of PowerDMARC's official site.

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Delivery Time

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Applications/Examples of results

■Examples of Achievements 【Overseas】 More than 5,000 domains - UK Government - Rolls-Royce - Australian National University 【Japan】 60 domains - Major insurance agency - Major household goods brand - Major rental company - Major food manufacturer

Detailed information

Dashboard screen after logging in. You can check the delivery status of spoofed emails and security-checked emails for the specified period.
With PowerSPF, you can configure settings using a graphical GUI. By registering and saving SPF include records and IP addresses learned from other services, they will be automatically reflected in DNS.
With Hosted DMARC, let's manage everything in bulk on the PowerDMARC interface instead of directly writing entries in DNS. There's no need to rewrite DNS records each time, and you don't have to worry about syntax errors!
There is no need to send attachments using PPAP (sending a password-protected ZIP file and then sending the password later). By setting up the standard technology MTA-STS, which guarantees encryption for all email routes, you can use an environment where files can be attached directly with just a 10-minute setup!
By setting up the three-point set of SPF/DKIM/DMARC and configuring a 100% quarantine setting to eliminate spoofed emails, you will be able to use BIMI, which allows your trademarked logo to be displayed in the inbox along with your emails. Setting up BIMI is also easy!
Do you want to check the email security settings of each domain used in your company? You can easily understand the current situation with PowerAnalyzer.
You can easily check the email security status at the system level or if employees want to verify their email security by sending an email to the specified address using MailAuth Analyzer!
PowerDMARC's strength lies in analyzing RUA and RUF reports sent in XML format, visualizing them in an easy-to-read graph, and providing analysis. It is used by over 5,000 domains worldwide and more than 60 domains domestically!

Line up（3）

Model number	overview
Basic Plan	A tool that simplifies the setup of SPF, DKIM, and DMARC. It includes features for analyzing, graphing, and database management of RUA/RUF reports, as well as functionality to move away from PPAP using MTA-STS, making it a SaaS with essential features for enhancing the security of current email delivery.
Plus Plan	In addition to the Basic Plan, it includes an extension called PowerSPF. This feature helps overcome the limitation of 10 DNS Lookups imposed by SPF to prevent DDoS attacks. Recommended for customers using email delivery from other services like Salesforce and SendGrid, who are likely to exceed the 10 DNS Lookup limit!
Premium Plan	In addition to the features of the Plus Plan, this plan allows for tracking and investigating the countries and IP addresses that sent spoofed emails, enabling security measures for companies that take security seriously. It includes easy registration of IPs that sent spoofed emails to the RBL (Realtime Blackhole List) with a button, and also allows for Take Down requests, making it perfect for the IT departments of large enterprises.