R4L/Manage/PasswordRules
From R4L Help Wiki
Your R4L username and password are the primary source of security for your account. We recommend using a password that you will be able to recall easily, and contains a mix of upper & lower case characters and/or digits. Password Reminder: If enabled, the lost password function can be used to have your account information sent to the administrative email address for your domain. This function can be disabled.
Password Rules:
Your password must be between 6 and 19 characters long. Passwords are CaSe sensitive.
Valid characters for your password include:
