T-Online / Magenta

DAVx⁵ has been successfully tested with T-Online

T-Online.de is a German news portal and ISP which provides an email service with address books and calendars.

Activate the CalDAV/CardDAV service on t-online.de

Since Sept. 20th 2026 T-online changed how CalDAV/CardDAV can be accessed. You need to explicitly activate this service now.

  1. Login to the Email Center
  2. Open Settings
  3. In the menu click “SyncPlus” and activate the “CalDAV / CardDAV" switch
  4. In the menu click “Password for Email applications” and generate an extra app-password there. Important: remember this password and send it to your mobile device since you will need it for the setup with DAVx⁵!

Please have a look at the instructions from t-online.de, too.

CalDAV/CardDAV setup

Base URL: https://spica.t-online.de/

Username: yourEmail@t-online.de
Password: your password for the given username

With free (non-paid) t-online.de accounts it's possible that only address book synchronization is available (no calendars). Address book and calendars are available for t-online.de customers.

Do not let the T-Online Email app sync your contacts

If you use the T-online app for Emails, please deactivate the option to sync contacts via this app (see screenshot). Otherwise you may run into problems where certain fields of a contact can't be synced. DAVx5 can sync your contacts and all it's fields more reliably.

WebDAV setup

You can mount folders from the MagentaCloud using the DAVx⁵ WebDAV mounts feature.

Because of a server issue, DAVx⁵ can only read files over WebDAV. Uploads seem to succeed, but leave a 0-byte file on the server.

WebDAV URL: https://magentacloud.de/remote.php/webdav

User name: see CalDAV/CardDAV
Password: you have to set up a WebDAV password