Signtrust Business Division
Support and Info center

You can contact us or our partners in any of the following ways. Simply choose the method that's easiest for you. We look forward to hearing from you.

If you have any general questions regarding Signtrust products or technical questions on Signtrust signature cards, please click on Support.

For technical support or product inquiries regarding Signtrust CARD, Signtrust NET or Signtrust CERT, please contact:
+49 (0)700 744 68 78 78* (0700-SIGNTRUST*, Monday - Friday from 9 am - 5 pm).

To put a stop on your card please contact:
+49 (0)800 100 82 63 - this service is available 24 hours a day.

Support for the "SignLive! CC" software from intarsys GmbH.

Support for the “OpenLimit CC Sign” software.

For questions about SignLive! CC Set or OpenLimit CC Set or about card readers from Cherry or ReinerSCT, please contact the relevant Support.

Comprehensive technical support (support ticket, knowledge base, live chat, etc.) can be found on the Comodo support page Support.

For technical questions about Signtrust SSL, please contact our Comodo partner's English service number:
(0044) 161 874 7070** (Monday - Friday, 9 am to 7 pm)

* 12.4 ct per minute or part thereof
** from 2.9 ct per minute or part thereof for international calls from a German Telekom landline; rates from other network providers may differ.

Deutsche Post Com GmbH
Geschäftsfeld Signtrust
Tulpenfeld 9
53113 Bonn

Deutsche Post Com, Signtrust Business Division is located at Tulpenfeld 9 in Bonn (opposite the Museum Mile), U-Bahn station: Heussallee (Museumsmeile). If you are traveling to our office, please use the route description on the Internet.

Internet www.signtrust.de

Bundesnetzagentur für Elektrizität, Gas, Telekommunikation, Post und Eisenbahnen
www.bundesnetzagentur.de
Tulpenfeld 4
53113 Bonn
Telefon +49 (0)228 14-0

Here you can find the certificates issued by the certification office for the following components:
Certification service providers
Time stamp service

Here is a list of frequently asked questions about the electronic signature.

Here is a list of the most frequently asked questions about SSL certificates.

Our addresses for information on revocation statuses and time stamps changed on January 1, 2008. The new addresses are:

Qualified certificates (http://ocsp.signtrust.de/ocsp/dpcom/qsig)
Non-qualified certificates (http://ocsp.signtrust.de/ocsp/dpcom/nqsig)
Time stamp service (http://tsp.signtrust.de/tsp/dpcom)

User software