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Are Your Emails Bouncing in Outlook or Outlook Web App? There’s a Fix for That!

When you send an email, Outlook and Outlook Web App automatically save that person’s email address in the Auto-Complete cache. This means that the next time you compose an email, your email client will automatically suggest the person’s name once you start typing in their email address or name. Over time, however, email autocomplete entries can become outdated. This can happen for multiple reasons, including a change in the person’s email address, a change in where the email account is hosted, or a change in the individual’s affiliation with the university. To correct this in Outlook or Outlook Web Access, first try to simply remove the individual’s Auto-Complete entry using the steps below: 

  1. Compose a new email message; 
  2. Begin typing the individual’s name into the “To” field until your client suggests a list of contacts; 
  3. Use the up and down arrow keys on your keyboard to highlight the name you wish to delete; and 
  4. Press the delete key on your keyboard

Once this entry has been deleted, manually enter the individual’s email address, click the “Check Names” button to find their address, and send them a new message. If the above steps do not resolve the problem, you may need to clear your full Auto-Complete cache. You may find detailed instructions for doing so at

For any questions or concerns or additional assistance, please contact IT Help Central at (806) 742-4357 (HELP) or via email at


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