How to configure automatic synchronization of your GMX default calendar with Mozilla Thunderbird


Calendar functionality was integrated into Thunderbird with version 78.0. If you don't see any options to add or view a calendar, please make sure to update Thunderbird to the latest version.

  1. Click on the menu icon in the top right corner of the Thunderbird window.
  2. In the New submenu, select Calendar.
  3. Select the On the Network option and then Next to continue.
  4. In the User name field, enter your GMX address.
  5. In the Location field, enter the path GMX email address/calendar.

Example: For the email address, you enter as the location.

  1. Click Find Calendars.

    Configure the synchronization with Mozilla Thunderbird

  2. Enter the password for your GMX Account and click on Sign in.
  3. Under Calendar Type choose CalDAV.
  4. Under Properties give the GMX Organizer a name and, if applicable, a color. Appointments from this calendar will later be displayed in the color. Click Subscribe.
Your GMX "My Calendar" default calendar is now synchronized with Mozilla Thunderbird.

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