Hi Bluesky088,
You may try the follow steps below to edit your POP mail server setting.
• In Outlook, select File > Account Settings > Manage Profiles
• It will open Mail Setup wizard> click Email Accounts..
• Select your POP account> Click Change
• On the Change Account page> Click More Settings...
If you still having problem please provide us with detailed screenshot which you have tried for further analysis.
Best regards,
Shyamal