Others

Q

Regarding the restrictions on email addresses.

A

If an error occurs when entering your email address,
the email address you entered may not comply with RFC standards.

An RFC non-compliant email address refers to an email address that does not conform to the specifications and requirements set forth in the RFC.
Many of these pertain to mobile phone email addresses (carrier emails such as @docomo.ne.jp and @ezweb.ne.jp), but
these RFC non-compliant email addresses may be able to send and receive between mobile phones (between carrier emails),
but may result in errors, failures, or rejection of sending, and cannot be handled by this service.
Please change your email address or use a different email address.

【Case】 A period (.) is present immediately before the at sign (@) or at the beginning of the email address
① .abcd@sample.co.jp
② abcd.@sample.co.jp

【Case】 There are consecutive periods (.) before the at sign (@)
① abcd..@sample.co.jp
② ab..cd@sample.co.jp

【Case】 Contains characters other than half-width alphanumeric characters and certain symbols*
*Certain symbols (. ! # $ % & ‘ * + ? / = ? ^ _ { | } ~ )

① ab[cd@example.co.jp
② ab@cd@example.co.jp)

Other questions regarding [Others]

• Q.
  I mistakenly registered my date of birth and gender.
• Q.
  About the phenomenon of freezing on the password input screen [for customers using iOS 16]

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