The email address of the member account.
The rules for a valid email address:
The email address must be a minimum of 6 and a maximum of 64 characters long.
All characters must be 7-bit ASCII characters.
There must be one and only one @ symbol, which separates the local name from the domain name.
The local name can't contain any of the following characters:whitespace, " ' ( ) < [ ] : ' , \ | % &
The local name can't begin with a dot (.).
The domain name can consist of only the characters [a-z], [A-Z], [0-9], hyphen (-), or dot (.).
The domain name can't begin or end with a dot (.) or hyphen (-).
The domain name must contain at least one dot.