New X.509 certificates

Important notice to our clients and partners:

According to our security guidelines, our e-mail certificates have been renewed in July 2009. They authenticate our e-mail public keys accordig to the S/MIME standard and replace all former certificates, whose validity ends hereby.

If you want to encrypt e-mails which you send to us, please download the new encryption certificates with our public keys from our website and assign them to our e-mail addresses in your e-mail application. Please find the certificates at » Contact -> Certified encrytion.