Setting up Microsoft Outlook with TLS-IMAP

Setting up Microsoft Outlook with TLS-IMAP

This page is based on Outlook 2003 (11.6568.6568) SP2
This page has been updated as of 10/05/2015 to reflect move from SSL to TLS for Outlook

  1. Go to the Tools menu and click on E-mail accounts...

  2. Choose Add a new email account
  3. Click Next
  4. Select IMAP
  5. Click Next

  6. Under User information, fill in your real name and email address. For CS users, your email address is of the form
  7. Under Server information fill in the name of the IMAP server. For most users, this is If you read your mail on another machine, you should already know the name of that machine. Enter it here.
  8. Also under Server information, fill in the name of the outgoing mail server. This should be
  9. Under Logon information, fill in your username. This is the username that you use to log in to the system that you're using as your IMAP server.

  10. You may enter your password if you wish, but it is not required. If you don't enter your password here, you will be prompted for it when you check or send email.
  11. Click on the More Settings... button.
  12. Click on the Outgoing Server tab.
  13. Click on the My outgoing server (SMTP) requires authentication checkbox.
  14. If your kerberos password is the same as your password on the IMAP server, you may simply Use same settings as my incoming mail server.

    If not, select Log on using and enter your username. You may enter your kerberos password or not.

  15. Make sure Log on using Secure Password Authentication is not checked.

  16. Click on the advanced tab.
  17. Select SSL under Incoming server(IMAP). The default port of 993 is correct.
  18. Select TLS under Outgoing server(SMTP). Change the port to 587.

  19. Click OK
  20. Click Next
  21. Click Finish
That's it. You should be ready to go.