used in a subsequent call to Login. Most parameters are optional. handle is not optional, and must be unique using case-insensitive compare. emailAddress should be validated to have a sensible format, including an @ sign and a period with a 3 letter extension. allowLoginWithoutEmailAddressValidation is used in <a class="el" href="structRakNet_1_1Client__Login.html" title="Logon with a previously registered account.">Client_Login</a> to potentially disallow logon attempts with unverified email addresses.  <a