To be able to receive notifications in your email, you should allow these. You can do this in the settings of your personal profile.
View profile settings
Make sure the box 'receive notifications by e-mail' is ticked, and save your adaptations.
Notifications by following a page
You can receive email notifications when someone is posting a new item, document or comment on a page, by following the page.
To follow a page, you have to click the button 'follow'. It will appear in the colour green when you have successfully clicked this button.
Note: not all pages have a follow button. This means you can only follow a page when this button is available.