Set-up and configuration

If you have already installed Thunderbird, the configuration dialog will be offered directly to set up an e-mail account - in this case, please read step 3. If you want to add the e-mail account of the University of Konstanz to an existing Thunderbird installation, please proceed as follows:

Account configuration
Schritt 1: Kontoeinstellungen

1. Open the application menu in the top right-hand corner of the Thunderbird window (button consisting of three lines), select “Settings””, then “Account settings”.

Schritt 2: E-mail-Konto hinzufügen.

2. Click on the “Account actions” button at the bottom left and select “Add an email account...”.

Namen eingeben
3. Schritt: Namen eingeben

3. Enter your first and last name and your University of Konstanz email address (

Automatische Konfiguration Thunderbird
4. Schritt: Fertig klicken

4. Thunderbird auto-configures all other settings, showing the final configuration once everything is set up. Click on “Done” to complete the configuration process.

Posteingang Thunderbird
5. Schritt: Der Posteingang ist eingerichtet

5. You can access your email account in the left-hand corner of the Thunderbird window. Click on “Inbox” to view your emails.

If you want to review or change your email settings, please follow these steps:

Einstellungen Mailkonto anzeigen

1. Please right-clickon your email account ( and select Preferences”.

Überprüfung der Server-Einstellungen

2. Click on “Server settings”: The default port of the IMAP server should be 143 , “Connection security” should be set to “STARTTLS”. Then click on “Outgoing mail server (SMTP)” in the column on the left.

Port-Einstellung SMTP auf 587
Servereinstellungen 2

3. It should be set to port “587” and your connection security should be set to “STARTTLS”. If you want to make changes, please click on “Edit”.

Evtl. Einstellungen SMTP aktualisieren

4. Here you can update your settings. However, this should not be necessary for the current configurations.

Managing your address books in Thunderbird

To use SOGo address books in Thunderbird, you need the SOGo plugins Connector and Lightning. The Lightning plugin is a standard feature of all Thunderbird versions starting at 38.0.1.

For Thunderbird versions older than 38.0.1, please install the Lighting plugin before continuing.

Open the following URL in your browser.

Please follow these steps:

  • Right-click on “SOGo Connector Thunderbird extension...”
  • Select “Save as...”
  • Save the file to your computer

Go the “Extras - Add-Ons” menu in Thunderbird to open the Add-on manager.

Go to “Add-ons” and select the “Install add-on from file” option.

Select the SOGo Connector file you saved earlier.

The “Software installation” window will open. Confirm by clicking on “Install now”.

To complete the installation process, you must restart Thunderbird. Please close the add-on manager once Thunderbird has restarted.

Configure your address book

For each user, Thunderbird manages a personal and a global university address book. The global address book contains email addresses of staff members, professors and students.
It is marked with a globe icon and can be searched only. You cannot list all contacts and must enter at least one letter. A maximum of 15 results will be shown.

Configure your personal address book

Click on “Extras - Address book” to open the address book.

Open SOGo in your browser and select the “Address book” tab.

Select the address book you want to add by right-clicking on it and go to “Properties”.

Go to the “Links to this address book” tab. Select the “CardDAV URL” while enabling “Access for authorised users” and copy it, e.g. by using the keyboard shortcut “Ctrl + C”.

Go back to the Thunderbird address book and click on “File - New - Remote address book”.

Enter the name of your connection in the following window and paste the “CardDAV URL” into the URL field, e.g. by using the keyboard shortcut “Ctrl + V”. Confirm by hitting “OK”.

Restart Thunderbird or complete a manual synchronisation by right-clicking on the corresponding address book (“Synchronise”) to use the new address book.

Configure the global address book

Click on “Extras - Address book” to open the address book.

Click on “File - New - Remote address book”.

Enter the name of your connection and the following URL ( ). Replace the popXXXXX POP-ID with your own POP-ID. Select “Read only” and confirm with “OK”.

To active the auto-fill function, go to “Extras - Options”.

Click on “Write” (1) and “Addressing” (2). Then select the University of Konstanz as LDAP server (3) and confirm with “OK”.

Remove address book

Right-click on the corresponding address book and select “Delete”.

Configure your SOGo calendar

To use the calendar function in Thunderbird you need the Lightning plugin. Lightning is automatically integrated into Thunderbird versions 38.0.1 and higher.

Go to “Dates and tasks -> Calendar” (1) and switch to calendar view (2). If you are not shown a task bar, right-click on the title bar and select “Task bar”.

Now you can view your calendar.

Open SOGo in your browser, select “Calendar” (1) and right-click on the name of the calendar (2) you want to add to Lightning. Select “Preferences” (3).

Now switch to the “Links to this calendar” tab. Select “CardDAV URL” while enabling “Access for authorised users” and copy it, e.g. by using the keyboard shortcut “Ctrl + C”.

Back in your Thunderbird calendar, go to the blank space in the left-hand column and right-click on “New calendar...” (1):

Select “Network” (1) and confirm with “Continue” (2).

Now select “CalDAV” (1). Paste the “CalDAV URL” into the “Address” (2) field, e.g. by using the keyboard shortcut “Ctrl + V”. Confirm by clicking on “Continue” (3).

You can now name (1) your calendar and choose a colour scheme (2). Confirm by clicking on “Continue” (3).

You now need to verify your information. Enter your user name firstname.lastname or your email address and your email password. Tick the “Password manager” box to save the password and confirm with “OK”.

Your calendar has now been created. Confirm by clicking on “Finish”.

An overview of your calendars is now shown on the left. Please complete these steps for every SOGo calendar you want to view/use in Lightning (i.e. copy the CalDAV link in SOGo and add it to Thunderbird as a CalDAV calendar by using the “New calendar” function).

Managing your dates with the available/unavailable function works just as it does in SOGo.