About membership

Q

Are there email addresses that cannot be used for registration?

A

The following cannot be used in principle because they do not comply with the RFC (Request for Comments), which is a globally common Internet communication standard.

▼E-mail address not compliant with RFC
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1. When symbols other than "-", "_", ".", "+", "?", and "/" are included

2. When symbols are used consecutively for two or more characters

3. If the symbol is used at the beginning and end (just before @)

Four. If the part before @ is 64 characters or more

Five. If the entire email address is longer than 256 characters
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If you are using an e-mail address that includes the relevant character string, please register again with a different e-mail address.

[AOL] [tac-net.ne.jp] [i-younet.ne.jp] email addresses cannot be registered due to the special environment.

If you do not have an e-mail address, please obtain a free e-mail address such as Gmail or Yahoo.

Other questions about "Membership"

• Q.
  Please tell me how to join.
• Q.
  Can I register as a member with a name other than my real name?
• Q.
  Can I register more than once?
• Q.
  I live overseas, can I join?
• Q.
  I have not received an email containing the URL for new member registration.
• Q.
  "The number of errors has reached the upper limit" is displayed and I cannot register as a member.

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