The Secure E-Mail Gateway of SEPPmail is an all-in-one solution for the economic and efficient use of a central administration of certificates and e-mail signatures (SIG), the encryption and decryption of e-mails (ENC), the simple and secure sending of large files (LFT) as well as the central e-mail disclaimer management (ZDM). Signature and encryption are performed in accordance with the international e-mail standards S/MIME and OpenPGP. A further technology, domain encryption, is included in the basic license of the appliance for the entire company. These standard technologies cover - completely transparent to the user - high-frequency, confidential e-mail communication. For low-frequency, confidential and spontaneous e-mail traffic SEPPmail uses ...