How to copy the AutoComplete list in Outlook

Phase 1 (Backup)
To export the AutoComplete mailbox message, follow these steps:

1. Exit Outlook, and then close Outlook Web Access or Outlook Web App (OWA) on all workstations that are connected to your mailbox.
2. Download and install MFCMAPI from https://github.com/stephenegriffin/mfcmapi.
3. Run mfcmapi.exe.
4. On the Session menu, click Logon.
5. If you are prompted for a profile, select the desired profile name, and then click OK.
6. In the top pane, locate the line that corresponds to your mailbox, and then double-click it.
7. In the left-side navigation pane, expand Root Container, and then expand Top of Information Store or IPM_SUBTREE.
8. Right-click the Inbox folder, and then click Open Associated Content Table. This action opens a new MFCMAPI window that contains various properties.
9. Under the Subject column, right-click the item that has the subject IPM.Configuration.Autocomplete, and then click Export Message. This action opens the Save Message To File window.
10. In the drop-down list, select MSG file (UNICODE), and then click OK.
11. Select a folder location to which you want to save the message, and then click Save. Note this location.

Phase 2 (Restore)
To import the AutoComplete mailbox message, follow these steps.

1. Exit Outlook, and then close Outlook Web Access or Outlook Web App (OWA) on all workstations that are connected to your mailbox.
2. Download and install MFCMAPI from https://github.com/stephenegriffin/mfcmapi.
3. Run mfcmapi.exe.
4. On the Session menu, click Logon.
5. If you are prompted for a profile, select the desired profile name, and then click OK.
6. In the top pane, locate the line that corresponds to your mailbox, and then double-click it.
7. In the left-side navigation pane, expand Root – Mailbox, and then expand Top of Information Store or IPM_SUBTREE.
8. Right-click the Inbox folder, and then click Open Associated Content Table. This action opens a new MFCMAPI window that contains various properties.
9. To avoid duplicate entries, you must delete the existing AutoComplete message. Note: Before you delete the IPM.Configuration.Autocomplete message, you must export the message by using the steps in the “How to export the Auto-Complete cache” section.To delete the existing AutoComplete message, follow these steps:
   1. In the Subject column, locate the item that has the subject IPM.Configuration.Autocomplete.
   2. Right-click the item, and then click Delete message. This opens the Delete Item window.
   3. In the drop-down list, select Permanent deletion (deletes to deleted item retention if supported), and then click OK.
10. On the Folder menu, click Import, and then click From MSG.
11. Locate the .msg file that you created in step 11 of the “How to Export the Auto-Complete List” section, and then click OK.
12. In the Load MSG window that appears, select Load message into current folder in the Load style list, and then click OK.

The AutoComplete information is imported from the IPM.Configuration.Autocomplete_<hexadecimal code>.msg, where the placeholder <hexadecimal code> represents a long string of numbers and letters.