Please go to Configure Eudora's Security Settings instead.

These instructions are outdated.

How to ...

• Use Kerberos with Eudora obtained through Bear Access
• Use Kerberos with Eudora obtained elsewhere
• Troubleshoot Kerberos errors

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 floating NetID window

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.

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.

Troubleshoot Kerberos Errors

• Windows Kerberos/SideCar error messages
• Windows Bear Access Troubleshooting Guide
  
  
• Macintosh Kerberos/SideCar error messages
• Macintosh Bear Access Troubleshooting Guide

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