Outlook not Caching email address in the to or other fields

Posted on 2007-08-07
Last Modified: 2013-11-05
Outlook is not caching the email address between usages. When you open outlook it any email address previously used will not come up in the fields of a new email.
Question by:Amirsys
    LVL 97

    Expert Comment

    Greetings Amirsys !

    If you typed in the address, it will be stored in the nickname file, .NK2.  The NK2 file may be corrupt.  Rename and Oultook will start an uncorrupted nickname file.

    With Outlook close, search for *.NK2 and rename the file.  When Outlook opens, a new one should be created.

    .NK2 file is located in
    C:\Documents and Settings\<user>\Application Data\Microsoft\Outlook folder. It is a hidden file. Go to any folder and select Tools > Folders Options > View. Check "Show hidden files and folders".  Click OK.

    Best wishes, war1

    Author Comment

    Thanks, I will try this when my user is back in the office. That will be a couple of weeks and this is a laptop I'm working with.

    Author Comment

    Couldn't locate the .NK2. I've tried looking for this file at my own workstation and the laptop that we are working on.
    LVL 97

    Accepted Solution


    The autocomplete data come from the nickname file and from Oultook Address Book. If you do not have a nickname file, outlook.nk2, then you have not typed in an email address previously.

    To Enable Contacts Database As An Email Address Book in Outlook 2003

    1. click Tools > Email Accounts
    2. click on 'View or change existing directories or address books' option.
    3. click 'Next'.
    4. click on 'Add' button > 'Additional Address Books' option.
    5. click 'Next'.
    6. click on the 'Outlook Address Book' option.
    7. click 'Next'.
    8. click on 'Finish' button.

    9. click on the 'Contacts' tab
    10. right-click on the 'Contacts' option on the left-hand side (under 'My
    11. click on the 'Properties' option - see multi-tabbed dialog.
    12. click on the 'Outlook Address Book' tab.
    13. ensure that the 'Show this folder as an e-mail address book' option is
    14. click OK.

    Your Contacts database should now be active as an e-mail address book.

    Write Comment

    Please enter a first name

    Please enter a last name

    We will never share this with anyone.

    Featured Post

    What Security Threats Are You Missing?

    Enhance your security with threat intelligence from the web. Get trending threat insights on hackers, exploits, and suspicious IP addresses delivered to your inbox with our free Cyber Daily.

    In this post, we will have a look on how to install Exchange Server 2013 from command prompt, instead of using the graphical user interface. Below are the steps that are to be performed to install Exchange Server 2013. 1. Domain Controller and…
    Introduction Ever had certain email messages or responses that you find yourself using over and over again? Do you use Google's Gmail system? If so, then this article is here to help you save time by teaching you how to create email templates from …
    The purpose of this video is to demonstrate how to set up an account with Mailchimp. This will be demonstrated using a Windows 8 PC. Tools Used are: Go to : Enter an Email, Username, and Password. Click Create My Acco…
    This Micro Tutorial will demonstrate the easy use of Gmail embedding images in your email so the recipient of your email can view them in context.

    794 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    18 Experts available now in Live!

    Get 1:1 Help Now