By default, these labels are called "Label 1" to "Label 7". Personally, I associate more with "to do!" than I do with "Label 2", so I've changed the Eudora labels to suit my needs better. You can do that, too.
Customize Eudora Message Labels
To customize the message lables in Eudora:
- Select Tools | Options... from the menu.
- Go to the Labels category.
- Type the desired name of the label in the entry field.
- Click on the colored box to open a color selection dialog where you can assign any color to your label.

