Dear Eddie_171,
Good day! Thank you for posting to Microsoft Community. We are happy to assist you.
As per the description you have shared, we understand that you have a concern with opening Outlook hyperlinks in default browser.
To better understand the issue and provide possible solution, we need more details from you, please kindly provide us the following information. Thanks in advance!
- May I please confirm if you are using Exchange, IMAP or POP email account?
- May I please confirm if default browser is selected under File and browser preferences in Advance option? if you haven't check it yet, please kindly open your Outlook go to File-->Options-->Advanced-->Scroll to File and browser preferences then choose Default browser-->Ok then close outlook and restart your Outlook and check if there is any difference. You can refer to Open file links directly in Office desktop apps - Microsoft Support
- May I please confirm if this issue is particularly with your account or other users in your organization experiencing same issue?
- Could you please provide us with the screenshot of your Outlook version details? See What version of Outlook do I have? - Microsoft Support
I look forward to your update. Kindly note that the above requested information is required for further analysis and troubleshooting of your situation. Your patience and cooperation are much appreciated.
Thank you for your precious time. Have a nice day.
Sincerely,
Libeamlak | Microsoft Community Moderator