And even more fortunately, Hotmail makes it easy to add the sender of an email to the address book contacts.
Add a Sender to Your Windows Live Hotmail Address Book Quickly
To add a sender to your Windows Live Hotmail contacts:
- Open a message from the desired sender.
- Click Mark as safe next to the From: name and address.
- Now click Add contact.
- Optionally, select Contact list under Related places from the sidebar to find and edit the newly added address book entry's details.