How-to Set up an Exchange account in Thunderbird
In the following how to, you will receive a step-by-step guide on how to set up an Exchange account in the Thunderbird email client.
1. Click on “Account settings” in the tab at the top of the window, then on “New account” and finally on “Email account” in the drop-down menu.

2. Enter your name, your Exchange email address as well as your password. Then, click "Next."
If you receive an error message indicating that further information is required for setup, enter your Uni ID/project number in the “Username” field using the following format: ad\(Uni ID/username), e.g., ad\xy123.

3. Select "IMAP" and then click "Manual setup."

4. Fill out the settings as follows:
Incoming server:
- Protocol: IMAP
- Host name: exchange.uni-heidelberg.de
- Port: 143 or 993
- Connection security: STARTTLS or TLS
- Authentication method: password, normal
- Username: ad\(Uni-ID/project number), e.g., ad\xy123
Outgoing server:
- Host name: exchange.uni-heidelberg.de
- Port: 587 or 465
- Connection security: STARTTLS or TLS
- Authentication method: password, normal
- Username: ad\(Uni-ID/project number), e.g., ad\xy123

Note: Thunderbird can also be used to determine the server settings automatically by clicking on “Retest” at the bottom of the window. However, should you receive an error message, please manually enter the correct information provided above. You can find more information about the email server settings on the linked page.
5. Finish the setup by clicking "Done."