Hi,
When you start Microsoft Outlook 2010 for the first time, your nickname cache (stored in the profilename.nk2 file) is imported into a hidden message in your default
message store
For example, if you are using a Microsoft Exchange account, the nickname cache is imported into a hidden message in the Exchange mailbox
Outlook 2010 does not use the .nk2 file for maintaining your nickname cache. All updates to your nickname cache in Outlook 2010 are made to the hidden message in
your default message store
The nickname cache has been moved to the Exchange mailbox, which means that your auto-complete list will now roam with you to different machines. The nickname cache
(.nk2 file in Outlook 2007) has been turned into an associated message of your Inbox folder. This lets the cache roam with your Exchange mailbox so that you have access to your cache on any client you use to access your mailbox
To address your issue please follow the below steps:
1. Delete the Roam Cache from location C:\Users\User Profile\AppData\Local\Microsoft\Outlook\RoamCache
2. Open Outlook. Go to File --> Options --> Mail --> Send Messages
4. Click "Empty Auto-Complete List"
5. Uncheck the option of "Use Auto-Complete List to suggest names"
6. Close Outlook and restart it again
7. Go to File --> Options --> Mail --> Send Messages
8. Check the option of "Use Auto-Complete List to suggest names"
9. Close Outlook and restart it again
10. Create a new email message and send it.
11. Close Outlook and restart.
12. Verify if the entry from Step 10 is available.
Regards,
Harveyy - MSFT
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Marked as answer by
Jennifer ZhanModerator
Wednesday, May 11, 2011 8:13 AM