We recently upgraded a client from Server 2012 + Exchange 2013 to Server 2016 + Exchange 2016.

Most everything has gone swimmingly; however, the suggested contacts (the contacts that show up as autocomplete options in Outlook) were not migrated. Prior to Exchange 2013, these were an NK2 file on the user's machine. In Exchange 2013, these became a folder in Exchange and the NK2 file was deprecated.

So, when we exported the mailboxes from the client machine for import into the new 2k16 exchange server, they should have come with.

But they didn't.

Where are they? How do I get these migrated over?

  • How exactly did you do the migration? The use of the word import suggests that you have done a PST migration between forests. – Sembee Apr 23 '17 at 19:46

Did you check out https://support.microsoft.com/en-us/help/2199226 ?

Microsoft Office Outlook 2007 and earlier versions store the AutoComplete list in an nickname (.nk2) file on the disk. Outlook 2010, Outlook 2013, and Outlook 2016 store the AutoComplete list as a hidden message in your primary message store.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.