

It will have carried over the incorrect settings from step 4.

Here, you should supply the following settings: This is the main Thunderbird setup screen. You will now see a window entitled Account Settings - Mozilla Thunderbird.On the next screen, ignore all options for now (we will correct them on the next screen), and simply click "Advanced Config." at the bottom:.You'll get a pop-up asking if you wish to proceed with manual configuration.This should be your primary email address, which may be a personal alias or departmental address. Write your name and email address here, and then click "Configure Manually" at the bottom of this window.If you don't see that pop-up, go to the Edit menu, and choose Account Settings -> Account Actions -> Add Mail Account. If this is your first time running Thunderbird, you'll see a pop-up asking you to set up your existing email address.

How to set up Thunderbird for GT's O365 services

Once you've downloaded and installed Thunderbird 78.x, please refer to the following instructions in order to set up your GT email. Please take extra care to download Thunderbird ONLY from either the Ubuntu 20.04LTS secure repository, or, for other distros and operating systems, from the official Thunderbird site at: GT has recently implemented a proprietary version of OAUTH2 that requires the latest Thunderbird client, version 78 or higher. It provides superior ease of use, with excellent long-term stability and support for industry standards such as IMAP and OAUTH2. Thunderbird is available in over 60 languages, with cross-platform availability for Linux, Mac, and Windows. Thunderbird is a freely-available email client, created and maintained by the nonprofit Mozilla Foundation.
