Outlook Android configuration problem and Cpanel Email Account

Hello, we recently started using a Cpanel account via o2switch where we are hosting our site. Until now we used an Exchange email account. We have just done some tests by creating an email account on Cpanel. No problem on computer Outlook on the other hand on Android Outlook unable to connect. Outlook Android asks us all the time to verify username and password as well as the server. overall is good on that side but still impossible to create this email address in Outlook Android. Do you have an idea ?