Update 4/23/2024: We have now released April 2024 Hotfix Updates which address known issues in March 2024 SU updates.
Microsoft has released Security Updates (SUs) for vulnerabilities found in:
...
Updated Apr 23, 2024
Version 8.0
Blog Post
Yellow envelope icons in Outlook seems to be more of an annoyance than a showstopper. There are however workarounds for the other issues mentioned in this thread:
- Download Domains (disabling is not ideal, but better than the alternative of uninstalling the March SU or leaving enabled and missing in-line graphics and downloads via OWA):
Set-OrganizationConfig -EnableDownloadDomains $false
One imagines when the fix is released, those who disabled Download Domains will want to re-enable them as follows:
Set-OrganizationConfig -EnableDownloadDomains $true
- Search Errors with Outlook Cached Mode:
To work around this issue, create the following registry entries to disable server-assisted search:
Path: HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Outlook\Search
Value name: DisableServerAssistedSearch
Value type: REG_DWORD
Value: 1
Key: HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Outlook\Search
Value name: DisableServerAssistedSuggestions
Value type: REG_DWORD
Value: 1
One imagines when a fix is released, you will want to reverse these changes.
Thanks for trying to stay on top of all this The_Exchange_Team.