The target principal name is incorrect – Microsoft Outlook

You may also like...

8 Responses

  1. Shahrokh Khanizadeh says:

    excellent details on how to fix the certificate error in outlook 2019
    thank you

  2. Scully says:

    This doesn’t work for my issue. Once I implement the change, Outlook will no longer open.

  3. Lubo says:

    Nice! Thank you.

  4. Raul says:

    Solved the issue, thank you!

  5. Glen Bierworth says:

    I’m not finding the Issued to value.

  6. Rob Kraft says:

    Sweet, worked great. I always assumed my incoming and outgoing servers would need a full uri like; but I changed both to match my cert ( and it worked.

    • Leisa Zoeller says:

      It was actually your comment here that fixed it for me not the article. Changing the url to totally worked. I still have mismatched certificates ( vs the cert in but it works. Thank you.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.