I just got a new CAC card.  How do I reset my Outlook email?

(Updated 20 Apr 2023)


To reset your Outlook certificate settings, please:


1.  Go to the search box on the bottom-left corner of your screen (it has the magnifying glass)

  1. Type in INTERNET OPTIONS and then click on it
  2. Click the CONTENT tab on top of the window pop-up
  3. Click CERTIFICATES
  4. Click on  ALL certificates and then click REMOVE
    (Don't worry about the other users' certificates--it will repopulate when they log in with their CAC)
  5. When done, click CLOSE --> OK 
  6. Pull out your CAC card and wait for 30 seconds
  7. Log back in


2.  Start OUTLOOK

  1. Click FILE -->  OPTIONS --> TRUST CENTER --> TRUST CENTER SETTINGS --> EMAIL SECURITY
  2. Next to the DEFAULT SETTING field, click SETTINGS
  3. Click the DELETE button, then OK -->  OK.
  4. Click SETTINGS again and then OK
  5. Type in your name in the SECURITY SETTINGS NAME field
  6. On the SIGNING CERTIFICATE row, click CHOOSE and then OK
  7. On the ENCRYPTION CERTIFICATE row, click CHOOSE and then OK
  8. Click OK to take you to the previous window (E-MAIL SECURITY)
  9. Click PUBLISH TO GAL
  10. Click OK and you should get a message that says your certificates were published to GAL
  11. Exit out of Outlook
  12. Run Outlook again.  You should be able to open/send encrypted emails now.


If you need to access old emails that were encrypted, please submit a ticket and we will coordinate a time to provide remote assistance.