Dear customers, dear partners,
Unfortunately, a major system failure has currently paralyzed significant parts of our communication services. This is due to an external source that has already been identified by our IT experts. However, it will probably still take some time before the system can be restarted.  
We ask for your understanding for this outage and will do our best to be able to react to your messages as quickly as possible at the usual service level.
In the meantime you can contact us via phone. The complete list of phone-numbers can be found on : Phone-Index
Thank you for your understanding.