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The company that makes Eudora is no longer supporting it. Consequently, LINK needs to migrate to new email software. We have chosen Thunderbird. It costs the same as Eudora: free.
We will ned your help in this massive undertaking. We are asking that you perform your own migration from Eudora to Thunderbird following the instructions in this document. However, please contact the Help Desk at any time if something is unclear to you. There are more than 600 LINK email accounts and it is common for one email account to be active on several PCs simultaneously. As you can see, this will be no small project.
This document will assist you in:
All of the procedures in this document assume that your Eudora account was installed and has been used according to SCLS recommendations. If you find that your setup differs substantially from what is described here, please call the Help Desk.
Once you migrate to Thunderbird email, it is critically important that you immediately stop using Eudora. Otherwise neither email client can be considered current or complete.
Do you remember what your Eudora email password is? You may say, "What password?". The very first time you launched Eudora, you were prompted for your email password as well as "Do you want Eudora to remember your password?". If you told Eudora to remember your password, then you probably had no reason to remember your password. Until now...
Do not continue with this document until you have your email password. There are several ways to access your password:
What may get lost:
There is some risk involved with an email migration. It is possible that some mail may not migrate to Thunderbird and you might not necessarily know it until years later when you need "that" email. While this risk is small, you may want to consider archiving your email. The "Eudora cleanup and organization" document, posted at http://www.scls.info/technology/email/prethunderbirdprep.html offers options on how to archive your Eudora mail before beginning the migration process.
What will get lost:
There are a few organizing features in Eudora that will disappear once you migrate to Thunderbird:
If any of these are of concern to you, the "Eudora cleanup and organization" document covers workarounds to these disappearing organizational features.
The first step in the migration process is to check your Eudora email one last time. This step "secretly" informs Thunderbird which Eudora account to import when you get to that point.
Note: Eudora must be closed or errors will occur during the migration to Thunderbird.
Your email migration to Thunderbird will fail if there are any viruses within your Eudora email so it's important to scan you email beforehand. Also, make sure that Eudora is no longer open. Failure to exit out of Eudora before proceeding will generate errors.
Locate the path to your Eudora mailbox:Navigate to your Eudora mailbox: ![]()
Scan your Eudora mailbox for viruses:
(Officscan)



If you did not have an Address Book in Eudora, you can skip this step.






Although each message in a mailbox appears to be separate, each message is actually stored in one large file. If your In box received a message that includes a virus and your PC's anti-virus software is configured to quarantine virus files (like it should), it is possible that your entire In box (and all the messages in it) will get quarantined.
You can decrease the likelihood of this scenario by configuring Thunderbird to download new messages as separate temporary files before they are associated with the larger In box. Messages that are considered "bad stuff" are then individually quarantined. To configure this behavior:
If your mail folders are not periodically compacted, they can grow very large and may cause erratic program behavior. Thunderbird can be configured to compact folders for you automatically.
By default, when you reply to an email in Thunderbird, it will jump your cursor down to the bottom of the email thread. Most folks prefer to start reading their email at the top of the thread. Here's how to reconfigure Thunderbird so that your cursor jumps to the top of the email thread when you reply.
If your email account is on a single PC you can opt out of this configuration setting and skip to the next section. If you check your mail from multiple PCs or use Mail2web, you need to configure Thunderbird to leave your email on the server for a designated period of time. See the steps below.
The rest of this section will guide you as to how to make the necessary changes. You can choose to disable the "Check for messages every" setting if you don't want Thunderbird automatically checking your email but do not make any other changes in this section without first contacting the Automation Help Desk. To configure Thunderbird to leave email on the server:
No one likes to have to deal with junk mail. There are two tiers of protection to separate you from junk email/spam: SpamAssassin on the email server and filters associated with the email software on your PC.
Many people configured Eudora with one or more spam filters to filter out junk mail. If you want to decrease your chances of receiving junk mail in Thunderbird, you'll need to set up at least one spam filter in Thunderbird (details follow). Setting up a spam filter in Thunderbird is a two-step process: activate Thunderbird's Junk folder and then create a filter to send spam to the newly created Junk folder.
After you've created the junk filter, you will need to "train" Thunderbird as to what is Junk and what is "good stuff". Training Thunderbird to correctly identify junk is beyond the scope of this Thunderbird migration and configuration document. After you've completed the migration document, please see Training Thunderbird's Junk Filter on how to train Thunderbird to correctly identify and process spam.
Activate Thunderbird's Junk folder ![]()

A general guide to creating Thunderbird filters is covered in the document "How to create an email filter in Thunderbird". Use this document as a frame of reference if you want to redeploy some of the same types of filters in Thunderbird as you had in Eudora.
At the end of this migration document, you’ll be instructed to delete your Eudora shortcut on the Desktop. But before you delete it, you should verify that the Thunderbird shortcut that you create (in the next section) actually works. Since you may want to call your Thunderbird shortcut the same thing as your Eudora shortcut and Windows doesn't let files of the same name live in the same location, let’s create a temporary folder for your Eudora shortcut before ultimately deleting it. Think of this step as a “safety valve”.
When you launched Eudora, you probably just clicked on a shortcut on your desktop. Here's how you can create a Thunderbird shortcut that will do the same thing.


Accurately identify the name of the Thunderbird account ![]()
Configure the new Thunderbird shortcut to launch your specific email account: ![]()
Before you begin, take a close look at the picture associated with this section. It may help clear up any questions that may arise as you work through these steps.

Verify that your Thunderbird shortcut works: ![]()
Now that you’ve set up your new Thunderbird email, let’s make sure it works by sending yourself some email and see if you receive it.

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Important Note
Whereas Eudora permitted you to send email internal to SCLS without the @scls.lib.wi.us suffix, Thunderbird will not. You only have to do this once with each email address in order to “train” Thunderbird to include the suffix.
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In some instances, attachments will not migrate from Eudora to Thunderbird. Why might this happen? In Eudora, if you deleted an email but kept the associated attachment, Thunderbird will not recognize that the attachment should be migrated since the attachment has been “orphaned” from the email. Consequently, we recommend that you backup your Eudora attachments as part of the migration process.
Create an "Attachments" folder within your "My Documents, <your name>Mail" folder
In the above section, you created a new folder that will be used to contain your email-related documents. In this section, you will be creating a sub folder that will hold mail attachments (Eudora now, Thunderbird later).
Locate the path to your Eudora mailbox ![]()
Navigate to the Attach folder contained within your Eudora folder ![]()
Copy the “attach” folder from your Eudora folder to the “Attachments” folder located in the “My Documents”, “<your name>Mail” folder

Delete the EudoraTemp folder on your Desktop
Earlier in this document, you created a folder called “EudoraTemp” on your desktop and deposited your Eudora shortcut into it. Once you’ve verified that your Thunderbird shortcut works, you can delete the “EudoraTemp folder.
Welcome to Thunderbird!
Just to reiterate, once you’ve completed the migration to Thunderbird, it is critically important that you immediately stop using Eudora, otherwise neither of your email boxes (Eudora or Thunderbird) can be considered current or complete.
You may see this Default Client window every time you open Thunderbird. However, until your migration mentor says that the migration is complete for your library, the boxes for "Email" and "Always perform this check when starting Thunderbird" should remain checked.
After the migration is completed for all email accounts at your library, this window should disappear.
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Page created 04/09. |
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