Configuring preferences and options in Outlook.com
Hi tsherfy, and Mark,
I understand your frustration about being unable to add your Yahoo account as a POP account in Outlook.com.
Please be informed that Outlook.com provides the recommended settings. If you're prompted to verify the settings, or if Outlook.com can't connect to the other mail server, you might need to contact your email provider to verify that the POP settings are correct. This is as mentioned in the article that my colleague, Mark_M., has provided in his post. You may check it for more information by going to the link provided below:
Send and receive email from other accounts in Outlook.com
Thank you.