sName           is string
sNameLength     is int
sDomain         is string
sDomainLength   is int
//check if has valid format
emailComponents is array of strings = StringSplit(email,"@")
IF emailComponents.Count() = 2 THEN
    sName       = emailComponents[1]
    sNameLength = Length(sName)

    IF sNameLength > 64 THEN RETURN False
    sDomain         = emailComponents[2]
    sDomainLength   = Length(sDomain)
    IF sDomainLength > 255 THEN RETURN False

    FOR i = 1 _TO_ sNameLength

    END
END