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Computing at Cornell E-mail Services

Is Your Password Safe?

Use Kerberos with Eudora
to Encrypt Your Password

How to ...

Why use Kerberos with Eudora?

Eudora, as delivered with Bear Access, is set up to automatically use the Kerberos security system. But sometimes people change that setting. That's a bad idea, because Kerberos is the only way to protect your password when you use e-mail.

If you check your e-mail without using Kerberos, your password will be sent to Cornell's mail server in clear text, which can easily be captured by malicious "sniffers" on the network. (Sniffing is akin to tapping a phone line, and is a violation of Cornell policy.)

How can you tell whether you're using Kerberos? If you are, you'll usually see a yellow key in the system tray (Windows) or menu bar (Macintosh). You may also see a small floating window with your Network Identity (NetID) on the desktop.

 
Windows
Macintosh
The yellow key
Kerberos yellow key
Kerberos yellow key
floating NetID window
Net ID window
Net ID window

arrow Use Kerberos with Eudora Obtained through Bear Access

All versions of the Eudora e-mail program distributed through Bear Access after January 15, 1996, are set up to use Kerberos automatically. Sometimes, this setting gets changed, either on purpose or by accident. Here's how to check.

Windows

    1. Go to Eudora's Tools menu and choose Options.
    2. In the scroll box on the left, click the Incoming Mail icon.
    3. Look at the Authentication Style area. The radio button in front of Kerberos should be filled in. If it's not, click it.
    4. Click the OK button.

Macintosh

    1. Go to Eudora's Special menu and choose Settings.
    2. In the scroll box on the left, click once on Checking Mail.
    3. Look at the Authentication area. The radio button in front of Kerberos should be filled in. If it's not, click it.
    4. Click the OK button.

arrow Use Kerberos with Eudora Obtained Elsewhere

If you obtained Eudora directly from Qualcomm, a retailer, or some other source, follow these steps to enable Eudora to work correctly with the Kerberos system at Cornell.

Windows

    1. In Eudora, go to the Tools menu and choose Options.
    2. In the scroll box on the left, click once on Incoming Mail.
    3. Near the bottom of this window, under Authentication Style, click the radio button in front of Kerberos.
    4. Now go back to the scroll box on the left. Scroll down to the bottom and click the Kerberos icon.
    5. Fill in the four fields exactly as follows:
      Kerberos POP3 port: 110
      Realm: CIT.CORNELL.EDU
      Service name: pop or imap
      (depending on which service you're using; see our comparison page for details)
      Service format: %1.%2@%3


    6. Double-check that CIT.CORNELL.EDU is capitalized.
    7. Click the OK button.
    8. Quit Eudora, and then start Eudora again.

Macintosh

  1. In Eudora, go to the Special menu and choose Settings.
  2. In the scroll box on the left, click once on Checking Mail.
  3. Near the bottom of this window, under Authentication, click the radio button in front of Kerberos.
  4. Now go back to the scroll box on the left. Scroll down to the bottom and click the Kerberos icon.
  5. Fill in the four fields exactly as follows:
    Kerberos POP3 port: 110
    Realm: CIT.CORNELL.EDU
    Service name: pop or imap
    (depending on which service you're using; see our comparison page for details)
    Service format: ^0.^3@^2


  6. Double-check that CIT.CORNELL.EDU is capitalized.
  7. Click the OK button.
  8. Quit Eudora, and then start Eudora again.

arrow Troubleshoot Kerberos Errors

 

 

Eudora home page | Receiving | Writing | Deleting | Organizing your e-mail
Working with attachments | Working with filters | Using Kerberos with Eudora
Obtaining Eudora Manuals | Help with Windows Eudora | Help with Macintosh Eudora
Setting up Eudora ... on your own computer ... for multiple users ... for a special mailbox

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Last modified: May 24, 2007