Configuring Thunderbird (2.0.0.6) as an IMAP or POP client with SSL

(Disclaimer: While it is true our official supported e-mail clients for employees are MS Outlook, and Sun Comm. Express (WebMail), this document is provided for personal computers outside our domain and focus of service. Thus, this document is supplied as I.T.'s "limited support" for an unofficial software application).
  1. Start Thunderbird, select [Don't import anything].
    (It's best to start out with a fresh install; this document does not discuss
    any issues concerning importing data from other e-mail clients.)
    Click [Next].
  2. Thunderbird Startup

  3. Select [Email account] and click [Next]
  4. Thunderbird E-Mail Selection

  5. Fill in the 'Your Name:' and 'E-mail Address:' fields with your individual information
    (remember to use your full "real" Kettering e-mail address in the 'E-mail Address:' field).
    Click [Next].
  6. Thunderbird Account Info.

  7. You can choose between IMAP or POP (also see IMAP/POP notes at the end of this document).
    Use imap.kettering.edu for an IMAP (incoming) server setting, or pop.kettering.edu if you choose to use a POP3 (incoming) server setting, and mailhost.kettering.edu as the SMTP (outgoing) server settings.
    Click [Next] when both the Incoming and Outgoing server fields are filled in (see next two images).

  8. You may Choose IMAP

    Thunderbird IMAP-1


    Or POP

    Thunderbird POP-1

  9. You should leave the default user name field entries.
    Click [Next].

  10. This is for IMAP Or POP

    Thunderbird User Names

  11. You may name the account (profile) anything you like.
    Click [Next].

  12. This is for IMAP Or POP

    Thunderbird Profile Name

  13. Finish.
    For IMAP, click [Finish] and then [Cancel] with it prompts you to authenticate.

  14. IMAP

    Thunderbird IMAP-2

    Thunderbird Cancel Login


    For POP, un-check the box that says [Download messages now] and click [Finish].
    POP

    Thunderbird POP-2

  15. It is highly recommended you secure your 'Incoming' e-mail by using an encrypted connection (SSL).
    Click [Tools] then select [Account Settings].

  16. This is for both IMAP or POP.

    Thunderbird Secure Account

  17. For an encrypted connection, click [Server Settings], and then click on the SSL radio button indicated.
    Then, click [OK].

  18. IMAP

    Thunderbird IMAPs-2


    POP

    Thunderbird POPs-2

  19. When back at the Thunderbird Inbox page, click [Get Mail].
    The "Certificate Warning" page will be displayed.
    Click [Examine Certificate].

  20. IMAP

    Thunderbird IMAPs-3


    POP

    Thunderbird POPs-3

  21. Compare the certificate information indicated in red with the images displayed below.
    When satisfied with the information, click [Close].

  22. IMAP

    Thunderbird IMAPs-4


    POP

    Thunderbird POPs-4

  23. Back at the "Certificate Warning" page.
    Select the [Accept this certificate permanently] radio button.
    Click [OK].
    IMAP

    Thunderbird IMAPs-5


    POP

    Thunderbird POPs-5

  24. Thunderbird should prompt you to authenticate. (For Thunderbird configuration settings when you are off-campus (outside the Kettering e-mail domain and network), please see the next few pages for outgoing e-mail relaying.)
Configuring Thunderbird's 'Outgoing' server settings when your computer is outside our network.
  • A.) If you have already configured Thunderbird (as above), while running Thunderbird, click this sequence: [Tools] => [Account Settings] => [Outgoing Server (SMTP)] => Select your account => [Edit].
  • Thunderbird Secure Account

    Thunderbird SMTPAuth-1

  • B.) The 'SMTP Server' window will pop up. Make sure the [Use name and password] check box is checked. Make sure of the [User Name:]. Select the [TLS, if available] radio button.
    Click [OK].
  • Thunderbird SMTPAuth-3

  • C.) Click [OK] to close the 'Account Settings' configuration window.


  • NOTES:

    A POP configuration is a setup that is geared for local computer e-mail storage use. When you 'POP' your e-mail messages with a POP e-mail client, you pull the e-mail messages off the server to your local INBOX onto the computer (default settings). This type configuration is useful when you have no need to keep your messages on the server and would like to view/store them locally. It is not recommended to use WebMail with POP unless you realize that your messages will be pulled off the server when you use your POP e-mail client. The only e-mail folder that is available to a POP client from WebMail folders is the INBOX. It is possible to leave your messages on the server using a POP client for viewing via WebMail by navigating to the [Server Settings] window, and selecting the [Leave messages on server] check box. However, for quota reasons, this requires you to perform deletion of messages out of your INBOX through WebMail, unless you choose one of the options below the [Leave messages on server] check box. (I.E. 'For at most' X number of days, or 'Until I delete them' (from Thunderbird). See item number 9, second image.)


    An IMAP configuration is a setup that is geared for server-end e-mail storage, and for local computer e-mail archiving/storage use. When you access your e-mail with an IMAP client, you essentially are peering into the folders and messages of what is stored on the server (much like WebMail). All folders that are on the server via WebMail (INBOX, Trash, Sent, Drafts, other folders that you create via WebMail or Thunderbird), are accessible via Thunderbird. You can also setup local folders and manually 'drag and drop' messages from server folders to the local folders ('Personal Folders'). Or use e-mail filters (rules) to automatically move messages to local folders that meet the filter criteria. When you delete a message out one of your (non-local) folders via the IMAP client, it will be moved to the 'Trash' folder. To remove it completely, you would click [File] => [Empty Trash]. Trash will be emptied from your Thunderbird e-mail as well as from the server storage. WebMail will work well with an IMAP client as long as you realize that when you remove a message off the server using WebMail, it will no longer be available from Thunderbird.

    SMTP: Some ISPs (Internet Service Providers) do not allow sending e-mail, (SMTP, port 25), except through their e-mail server(s). If this is the case for your ISP, you may have to try to change your SMTP E-mail server port to 587, see step B above. Change the 'SMTP server ' port number from '25' to '587' and try again.