Outlook email address cache

The Outlook email address cache!

When you use Outlook to send and receive emails, it stores a cache of email addresses in your local profile. This cache is used to speed up the process of sending emails and to help you quickly find contacts in your address book. However, this cache can also cause issues if it becomes outdated or corrupted.

Here are some reasons why you might want to clear the Outlook email address cache:

  1. Outdated contacts: If you've updated your contacts in your email client or online account, but the changes aren't reflected in Outlook, clearing the cache can help sync your contacts.
  2. Corrupted cache: If the cache becomes corrupted, it can cause issues with sending emails, such as errors or delays.
  3. Duplicate contacts: Clearing the cache can help remove duplicate contacts from your address book.
  4. Improved performance: Clearing the cache can help improve Outlook's performance by removing unnecessary data.

To clear the Outlook email address cache, follow these steps:

Method 1: Clear the cache using Outlook's built-in feature

  1. Open Outlook and go to the "File" menu.
  2. Click on "Options" and then select "Advanced" from the left-hand menu.
  3. Scroll down to the "Send and Receive" section.
  4. Click on "Empty AutoComplete cache" and then click "OK".

Method 2: Clear the cache using the Windows Registry

  1. Press the Windows key + R to open the Run dialog box.
  2. Type "regedit" and press Enter to open the Registry Editor.
  3. Navigate to the following key: HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\AutoComplete
  4. Right-click on the "AutoComplete" key and select "Delete".
  5. Close the Registry Editor and restart Outlook.

Method 3: Clear the cache using a third-party tool

There are several third-party tools available that can help you clear the Outlook email address cache, such as CCleaner or Outlook Cache Cleaner.

Remember to always back up your Outlook data before clearing the cache, as this process may remove some of your contacts and settings.