Deutsche Telekom Brand Claim

Secure E-Mail communication with Deutsche Telekom

Deutsche Telekom supports the secure communication of encrypted and signed E-Mails via the Internet. The S/MIME standard is used as end-to-end encryption for encrypting E-Mail traffic with your company.

Deutsche Telekom also supports the PGP standard via an E-Mail encryption gateway.


S/MIME uses digital certificates to protect E-Mail. To use S/MIME, a trusted certificate and an S/MIME compatible E-Mail client, such as Outlook or Thunderbird, are required. Digital certificates issued by public Certification Authorities (CA) or corporate CAs can be considered as digital identities.

The Corporate PKI of Deutsche Telekom AG provides for all employees in Germany and in the national subsidiaries of Deutsche Telekom Security GmbH trustworthy certificates for secure E-Mail communication. These are advanced certificates that comply with ETSI (LCP).

The Trust Center of Deutsche Telekom ensures that the Sub-CA "Deutsche Telekom AG secure email CA E03" under the public Root-CA fulfills and complies with the requirements and regulations of ETSI 319411-1 Policy LCP and ETSI 319401.

Further details can be found in the Certificate Policy (CP) and the Certification Practice Statement (CPS).