If your domain is flagged by spam traps or receives a high volume of manual spam reports from recipients, your domain will be blacklisted globally. This means even your legitimate everyday business emails will fail to reach your clients.
Almost every professional Japanese company uses custom domains (e.g., name@companyname.co.jp ).
Build your own contact list by:
In today's digital age, having a comprehensive list of current email addresses of companies in Japan is crucial for businesses, marketers, and entrepreneurs looking to expand their reach in the Japanese market. Email marketing remains one of the most effective ways to connect with potential customers, partners, and suppliers in Japan. However, finding accurate and up-to-date email addresses can be a daunting task, especially for those who are new to the market. If your domain is flagged by spam traps
Therefore, any list claiming “100,000 Japanese company emails with Gmail/Hotmail” is outdated, fabricated, or illegally scraped.
: One of the most popular domains in the Japanese market, often used for both B2C and small B2B communications. hotmail.co.jp hotmail.com
Finding a comprehensive list of Japanese companies using generic email providers (like Gmail, Hotmail, or Yahoo) for 2022 requires looking into niche business directories and data-sharing platforms. While major Japanese corporations like Toyota or Sony use private domains (e.g., @sony.com ), many smaller agents, recruitment firms, and local service providers in Japan frequently use generic providers. Build your own contact list by: In today's
Instead of searching for public email strings, use official corporate registries and business databases to identify target corporate domains.
: Still present in many legacy contact lists, though less dominant than Gmail. AOL and Others : Older domains like
Instead of seeking a pre-made list, consider: many smaller agents
, this law expanded individual rights regarding personal data. Businesses must specify the exact purpose of data collection (e.g., "marketing") and generally cannot use personal information for new purposes without explicit consent. Anti-Spam Law:
: raturi@comsize.co.jp or ohtaka@comsize.co.jp Go Global : yayoi@go-global.info Common Email Providers in Japan