It is important to clarify upfront:
| Business type | Uses @gmail.com | Uses @yahoo.co.jp | Uses @hotmail.com | |---------------|----------------|-------------------|-------------------| | Sole proprietor | Sometimes | Rare | Very rare | | LLC (合同会社) | Uncommon | No | No | | Corporation (KK) | Almost never | No | No | | Freelancer (personal brand) | Yes | Occasionally | No | It is important to clarify upfront: | Business
In fact, Japan’s business culture and data privacy laws (Act on the Protection of Personal Information – APPI) strictly prohibit the bulk distribution of corporate employee emails, especially those tied to free consumer services. It is important to clarify upfront: | Business