Without leaving the Email page, which is the most efficient way to add the contact of someone who sent you an email?
Copy and paste their email address into a new contact form.
Double-click the sender's email address in the message and select Add to Outlook Contacts (Windows) or Open Outlook contacts (Mac).
On Windows, right-click the sender's name in the message and select Add to Outlook Contacts. On Mac, Control+click the sender's name in the message and select Open Outlook contact > Add to Contacts > Save and then Close.
Open the email and press Ctrl+Q (Windows) or Command + Q (Mac).