This article apply to
Outlook 2016 users affected by the recent Microsoft bug revealed in October (
version 1809, builds 10827 and higher).
We have identified an issue with recents builds of Outlook 2016. If you are affected by it, you may experience any of the following symptoms:
- You get the The name could not be matched to a name in the address list error
- Messages sent out from your Outlook get delivered to recipients as they would have been sent from ***@outlook.com address
Important: Back up the registry first and be careful when making any changes to it as any incorrect action may result in the OS crash.
1. Open
regedit: to do so, click the
Start button and then in the Start Menu, either in the
Run box or in the
Search box, type
regedit and press
Enter.
2. Create the registry backup.
Note: you can skip this step, however, we highly recommend to back up the registry before you proceed to modifying its entries.
3. Navigate to
HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\AutoDiscover 4. Add a new
DWORD entry.
5. Give it a name of ExcludeExplicitO365Endpoint and value of 1.
6. Restart your computer.
7. Open Outlook.
Note: You may be prompted once to enter the user's credentials.
