What is the short message address in Japan?

Usually Japanese mobile phones send and receive emails. It's just an ordinary email xxxx@xxxx.ne.jp

In addition to mail, the mobile phone of au Company also has a cmail. Cmail can be sent by phone number, only within the range of the same company's mobile phone. And can only send 50 characters.

If you send an email, it is ordinary mail, which can send a lot of capacity and can bring all kinds of nearby. Yes, cc, bcc