E-mail and agenda for a android telephone or tablet

You can install your email and calendar on your phone via the Outlook app.
To do so, download the Outlook app from the Play Store and log in with your email address (firstname.surname [at] ru.nl (firstname[dot]surname[at]ru[dot]nl)).

Multi Factor Authentication (MFA) is required to set up your email.

Using Android's mail app

Alternatively, you can use your phone's default mail and calendar app.
Note that not all features are supported and instructions vary from device to device.

Go to Settings > Accounts and backup > Manage accounts > Add account > Exchange
Log in with your e-mail address (firstname.surname [at] ru.nl).

When prompted for a server address, enter outlook.oﬃce365.com.