In Japan, the suffix .co.jp is the gold standard. It is restricted to registered corporations, making it a badge of legitimacy. While smaller startups or sole proprietorships might use @gmail.com or @yahoo.co.jp , larger entities almost never do. Common Public Email Suffixes in Japan:
If you received a link or file claiming to be this data, it’s safest to assume it is and not use it. In Japan, the suffix
Here is a list of email addresses of companies in Japan, categorized by industry: categorized by industry: