Outlook.NK2 file issue with new Exchange Server – User receive bounce back when emailing internally
You have two options here –
Option 1 – Delete the outlook.nk2 file and let it recreate itself. Issue is most users use this file to store email contacts and not the contracts systems in outlook itself.
Option 2 – use the following outlook.nk2 tool to edit the users file and strip out the old internal details
FREE Tool – http://www.nirsoft.net/utils/outlook_nk2_edit.html