re : ''History: 4 years ago I did use Thunderbird but it never worked right so I deleted it. '' Thunderbird the program itself and Thunderbird profile folder containing all the details on mail accounts are two different things and the info is kept in different locations. All profile data - emails, preferences, address books etc are kept here by default: * C:\Users\<Windows user name>\AppData\Roaming\Thunderbird\Profiles\<Profile name>\ 'Profile name' is usually called 'xxxxxxxx.default' where the x's are letters and numbers. Please note these are in the 'Appdata' folder which by default are hidden so you may need to make hidden files and fodlers visible first. When you uninstall Thunderbird, it only uninstalls the program, leaving all your profile data intact. So I believe you uninstalled the program, but perhaps did not delete the AppData\Roaming\Thunderbird folder containing the old profile. re : ''When I downloaded Thunderbird I got Telus and Shaw.'' When you later reinstalled Thunderbird and first ran it, it would seem to have picked up your old profile hence why you have the Telus.net info.