First, the good news: I found a solution on WindowsLiveHelp with exactly the right title: How to add your e-mail account to Microsoft Outlook.
Now the bad news: the instructions were not updated for Outlook 2007. Step 11 (see below) identifes tabs and fields that don't exist when I follow these instructions.
Thanks for any help.
David
11. On the Advanced tab, type the following information, and then click OK.
Under Incoming Server (POP3):
Select the This server requires an encrypted connection (SSL) check box.
In the Incoming Server (POP3) field, the number 995 should display. If not, select the number and type 995.
Under Outgoing Server (SMTP):
In the Outgoing Server (SMTP) field, type 25 or 587 for the port number.
Under Use the following type of encrypted connection choose AUTO (in Outlook 2007). If you are using Outlook 2003, choose SSL.
Select the Leave a copy of messages on the server check box if you want to see your messages when you use Hotmail in a web browser, your mobile phone, or other e-mail programs. If you want to delete your messages from the Hotmail server after you read them, clear this check box. Click OK