If you have lost your user account password, simply go to the "My account" page on the website or to the home screen of the "My In&box" mobile app and click on "Forgot password".
You will then receive a new password by email, which you can change later in your user account. Please note that, depending on your email service, the email may take a few minutes to arrive.
Once you have received the new password, you can use it to log in to your user account and change it later.
Resetting my password on the My In&box mobile app
Go to My account > My personal information, then scroll down the page to the Password section. Then click on Change my password.
Resetting my password from the web suite
In the "My information" > "Change my password" tab: