Outlook error "Something unexpected went wrong with this url"

Ivan,

Here is the Known Issue article in case it can help, Outlook blocks opening FQDN and IP address hyperlinks after installing protections for Microsoft Outlook Security Feature Bypass Vulnerability released July 11, 2023 - Microsoft Support.

If you add the sites to Trusted Sites it will mitigate the error below:

However, even after adding to Trusted Sites the confirmation prompt will still occur and this is expected:

For the GPO to work correctly you need to use three forward slashes before the backslashes to establish the correct protocol.

This was in my example

i.e. for \myfileserver.internal you would use:

file:///\myfileserver.internal in the GPO

Trying to figure out the proper "trusted site" to add to GPO so users are able to open the following link:

\Companyname.sharepoint.com@ssl\DavWWWRoot\Sites\XYZ.Doc

Users are right clicking and dragging files from mapped SharePoint sites into the body of an Outlook msg and selecting "create hyperlink". This used to work until the latest update. I'm not sure if adding anything into the trusted site will even work for this scenerio. Anybody know? If so what is the actual site I need to put into the GPO. I have tried: file:///\companyname.sharepoint.com and that didn't work.

Hi,

Most of my colleagues reported me that they can open links with prompt if they are sure. No site added in any zone.

Outlook build is still 2307. Maybe it is some kind .NET update. I do not have official information from Microsoft anywhere.

However other old issues from one of previous Microsoft Update appear. When they close Excel now it closes Skype for Business client. 

Exact same issue was generated by Microsoft about an year before with one of their updates.

I do not have anything more to say.

If Microsoft do not set their automatic test not to produce such problems when they already done it before, it is ridicules.

I'll reopen the old issue log for Excel and SfB. Sorry to put such comments here.

BR,

Ivan Cholakov

@Ivan,

I found there is an Office bug logged for the issue where closing Word or Excel causes SfB to crash. The issue is being investigated. The support engineer found a short-term mitigation, but I am not sure if it will cause other issues, so test it if you think it might help.

He found setting DefaultIMApp to Teams stopped the SfB crash. If you check Event Viewer you will likely see Event 1000/1001 Lync.exe for each time you close those apps and SfB crashed.

Outlook uses that DefaultIMApp for presence and other integration so there might be tradeoffs if it is used e.g. Instant messaging client features not available - Outlook | Microsoft Learn.

Computer\HKEY_CURRENT_USER\SOFTWARE\IM Providers

Reg Key:

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\SOFTWARE\IM Providers]

"DefaultIMApp"="Teams"

Enable or disable hyperlink warning messages in Office programs - Office 365 | Microsoft Learn

Enable or disable hyperlink warning messages in Office programs - Office 365

Describes how to enable or to disable hyperlink warning messages in Microsoft Office programs.

HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\common\security

DisableHyperlinkWarning = 1