Outlook Prompts for Login Credentials for SharePoint

SharePoint can be a bit of pain to deal with, especially when you integrate it with other applications.  On occasion, I’ve run into an issue where you will receive a prompt for credentials every time that Outlook is opened.  Even checking the box to remember the password, this annoying box will continue to pop up.  Modifying the stored credentials in Windows does not fix the problem.  Sure, you could either enter your credentials and hit OK or hit cancel, but I’m not a fan of leaving issues unresolved.

I’ve seen many posts and comments in a myriad of forums that recommend following the instructions detailed in http://support.microsoft.com/kb/943280/en-gb.  For some people it has worked; for others, it has not.  While I’m quite comfortable messing with the registry, I’d prefer a less invasive solution.  What I found works better is to add the SharePoint site to your list of intranets inside of Internet Explorer.  To do so:

  1. Close Outlook
  2. Open IE
  3. Click on Tools | Internet Options
  4. In the Security tab, select Local intranet in the zone box
  5. Click Sites
  6. Click the Advanced button
  7. Add the site to the list (e.g., sharepoint.domain.com)
  8. Close/OK out of all windows to accept the changes (obviously don’t hit cancel or X)
  9. Open Outlook