Synchronizing with Thunderbird

Synchronize your GMX Organizer with your calendar application on Thunderbird to make sure, that your appointments are up to date.

If you use the "Lightning" add-on for Thunderbird, you can configure automatic synchronization. Due to the technical limitations of Thunderbird, you have to synchronize each of your calendars (default calendar and other calendars) individually.

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

Note:

Thunderbird does not include its own calendar. In these instructions, we use the free Lightning add-on on a PC with Windows 7.

  1. Install the Lightning Thunderbird add-on and restart Thunderbird.
  2. Press Alt + D to open the File menu.
  3. In the New submenu, select Calendar.
  4. Select the On the Network option and then Next to continue.
  5. Select the CalDAV format.
  6. In the Location field, enter the path https://calendar.gmx.com/begenda/dav/your GMX e-mail address/calendar.

Example: For the e-mail address john.doe@gmx.com, you enter https://calendar.gmx.com/begenda/dav/john.doe@gmx.com/calendar/ as the location.

  1. Click Next.

    Configure the synchronization with Mozilla Thunderbird

  2. Give the GMX Organizer a name and, if applicable, a color. Appointments from this calendar will later be displayed in the color. Click Next.
  3. Enter your GMX e-mail address and password. Confirm by clickingOK.
  4. Complete setup by clicking Finish.
Your GMX "My Calendar" default calendar is now synchronized with Mozilla Thunderbird.

How to configure automatic synchronization of other GMX calendars with Mozilla Thunderbird

  1. Start Mozilla Firefox and enter the path https://caldav.gmx.com/your GMX e-mail address in the address line. Press Enter.
  2. Enter your GMX e-mail address and password.
  3. Click Home collection at the end of the page.
  4. Right-click the name of the calendar you want to synchronize with Thunderbird.
    A context menu opens.
  5. Select Copy Link Location in the context menu.
  6. Start Mozilla Thunderbird.
  7. Press Alt + D to open the Filemenu.
  8. In the New submenu, select Calendar.
  9. Select the On the Network option and then Next to continue.
  10. Select the CalDAV format.
  11. Click the Location field and press Str + V to paste the link address of the calendar from the clipboard.
  12. Click Next.
  13. Give the GMX Organizer a name and, if applicable, a color. Appointments from this calendar will later be displayed in the color. Select Next to continue.
  14. Complete setup by clicking Finish.
Postrequisite:

If you want to synchronize other GMX Organizers with Thunderbird, repeat steps 4 through 14.