Disable Outlook's address-autocomplete feature

Keep the e-mail program from suggesting addresses as you type to avoid sending mail to the wrong people; plus, a freebie takes the sting out of exporting Outlook autocomplete entries.

I didn't realize how much I had come to rely on Microsoft Outlook's ability to automatically complete the e-mail addresses I entered in the To:, Cc:, and Bcc: fields until a recent Microsoft Exchange server update at my office wiped out the entries. Of course, one person's convenience is another person's security risk.

Eli Lilly and Co. found this out the hard way last year after a lawyer in the company's employ sent a confidential memo intended for a colleague to a report for the New York Times whose name was similar to the coworker's.

To disable Outlook's address-autocomplete feature, click Tools > Options > E-mail Options (under the Preferences tab) > Advanced E-mail Options. Uncheck "Suggest names while completing To, Cc, and Bcc fields" and click OK three times.

Microsoft Outlook 2007 Advanced E-mail Options dialog box
Block Outlook from autocompleting addresses by unchecking this setting in Advanced E-mail Options. Microsoft

If you're a fan of Outlook's autocomplete feature, you may want to export your autocomplete entries to another PC. Microsoft provides instructions for doing so, though Vista users will need to refer to one of the article's comments to find the location of the .nk2 file they need to export.

But there's a better way: Nirsoft's free NK2View lets you view the entries in this file and export them as a text file, HTML, or XML. You'll find more information about the utility on the NirSoft site.

Featured Video
This content is rated TV-MA, and is for viewers 18 years or older. Are you of age?
Sorry, you are not old enough to view this content.

An iPhone 6 prototype has one week of battery life

Apple's September 9th event is official, Intelligent Energy builds an iPhone 6 that lasts one week without a charge and will your iPad take direct phone calls?

by Brian Tong