From the Smartermail interface, we can ensure that passwords become invalid after a certain period of time. Users cannot see when their password will expire from the smartermail interface. However, when the system approaches the specified dates, it sends an e-mail stating that your password will expire. I request a field related to this from the Smartermail interface to appear to the user. Likewise, it would be a nice feature to be able to see the last password change date with the api. Thus, the user can see when the password expires. In the same way, we can pull the data with the API and provide controls for the accounts.