on Saturday afternoon you need to setup email forwarding from Daniela's mailbox to Elena's mailbox.
Below is a step-by-step guide how to do that.
Forward Email to Another Email Address
To set up Outlook.com to forward incoming messages to a different email address automatically:
login into Daniela's account at www.outlook.com
Click the settings gear in the Outlook.com toolbar.
Choose More mail settings from the menu.
Follow the Email forwarding link under Managing your account.
Make sure Forward your mail to another email account is selected under Email forwarding.
Select Don't forward to halt forwarding.
Enter Elena's email address to which all mail coming to Daniela's account should be forwarded under Where do you want your messages to be sent?.
If you cannot add another email address:
You can click Remove for an existing forwarding address to replace it.
If Daniela want to retain copies of forwarded mail at Outlook.com:
Make sure Keep a copy of forwarded messages in your Outlook inbox. is checked.
With Keep a copy of forwarded messages in your Outlook inbox. not checked, forwarded mail will not be available in Outlook.com at all (not in the Deleted folder either).