blastmail.jp

What It Is

blastmail（ブラストメール） is a cloud-based email delivery system provided by RAKUS Light Cloud Co., Ltd., positioned for corporate bulk email, email newsletters, and email marketing. The site says it has more than 20 years of service experience, a customer base of over 27,000 companies, and claims the No.1 share in number of implementations for 15 consecutive years. It is not a multi-channel communications platform; based on the captured content, only the email channel is shown.

Core Capabilities

For email features, blastmail offers CSV list imports, no-code HTML email editing, template creation, insertion of personalized fields, targeted segmented delivery, open-rate and click-rate measurement, automatic exclusion of invalid addresses, registration forms, and one-click unsubscribe. For deliverability, the site emphasizes that it optimizes sending by email provider based on large volumes of delivery data, supports the Gmail sender guidelines, and uses spam-detection countermeasures plus list cleaning to reduce the risk of messages landing in spam. However, it does not disclose specific deliverability percentages or throughput figures. On the API side, it supports HTTP(S) and XML-RPC, enabling subscriber data synchronization, immediate/scheduled delivery, delivery history retrieval, successful/failed address lists, open-rate results, and similar data. This makes it suitable for basic automation with CRM, MA, CMS, or internal systems.

Pricing and Support

Pricing is based on the number of registered addresses, with unlimited email sends. Light costs 4,000 JPY/month for up to 5,000 addresses; Standard starts at 8,000 JPY/month, with public pricing up to 30,000 JPY for 50,000 addresses; Pro starts at 30,000 JPY/month and requires a quote. There is also an initial setup fee: 10,000 JPY for Light/Standard and 50,000 JPY for Pro, all before tax. Payment methods include bank transfer, automatic bank account debit, and credit card. A 7-day free trial is available and does not automatically convert to a paid plan. The support system is fairly comprehensive: all plans include form support, phone support, AI chat, a support site, and videos. Pro additionally includes dedicated support, onboarding meetings, email copy review, and improvement suggestions.

Pros, Cons, and Best Fit

Its main advantages are that email send volume is not metered, making it suitable for high-frequency, large-volume email marketing; the admin interface is positioned as easy to use, which is friendly for non-technical teams; and its local Japanese support and compliance credentials are relatively clear. The downsides are that the language, phone support, and case studies are clearly oriented toward the Japanese market; the API covers basic email delivery operations, while more complex transactional email, SMTP relay, and SDK scenarios may require considering its blastengine service; and Pro pricing has limited transparency. It is best suited to Japanese companies, ecommerce member emails, media newsletters, educational institution notifications, and marketing teams that need CRM integration.

Access from China

The reviewed content does not provide information on access from mainland China, node locations, ICP filing, or RMB/Alipay payment options, so China accessibility is unknown. If a China-based team serves Japanese users, blastmail can be evaluated as a Japanese-language email marketing tool. If the main target is mainland China recipients or Chinese-language support is required, it is recommended to compare it alongside SendGrid, Amazon SES, Mailchimp, and domestic Chinese email service providers.