In the Nucleus Universal Groupware you can share a calendar by logging in to the web-interface(https://nug.nucleus.be) using your username (= your e-mail address) and the password provided to you.
Next you can click on “Preferences” in the tabs on top.
Next you can click on “E-mail” in the left menu bar.
In this menu you can scroll down to “Receiving Messages”.
In the textbox “Forward a copy to:” you can fill in the address of your other mailbox.
Now you will recieve your mails on both adresses.