: Always address the contact or company using Keigo (polite Japanese language) if writing in Japanese. Append -sama (様) to names or Onchu (御中) to company names.
Older, established sole proprietorships that adopted the internet in the late 1990s or early 2000s occasionally maintain legacy accounts like @hotmail.com or @aol.com (or regional variants). While rapidly declining, these addresses still exist in older business registries and local directories. The Value of .CO.JP vs. Public Domains
These will give you official @company.co.jp or @company.jp emails, not Gmail. : Always address the contact or company using
Emails written in English or poorly translated machine Japanese are highly likely to be marked as spam or ignored. Use formal business Japanese.
These tools check if the specific inbox at gmail.com or yahoo.co.jp actually exists without sending a physical email. Best Practices for Outbound B2B Campaigns in Japan While rapidly declining, these addresses still exist in
For large-scale data collection, automated tools can scan Japanese business registries and social profiles.
When building a list of Japanese business contacts, legal compliance is non-negotiable, particularly with Japan's (the "Anti-Spam Law"). Key points to remember include: Emails written in English or poorly translated machine
While it is common for small businesses or individual agents in Japan to use free email providers, most established companies utilize (e.g., @company.co.jp ) for professional credibility. Databases of current company email addresses are typically sold by professional lead generation services rather than being listed for free. Common Email Domains in Japan (2022)
While giant firms will never use public webmail for core communications, tiny sole proprietorships, independent contractors (freelancers), or micro-sized startups in Japan might use standard Gmail or Yahoo accounts during their initial launch phase.
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