In order to be able to securely communicate with communication partners who themselves do not have any key material at their disposal, the GINA technology is used.
For the initial setup of this procedure, the reachability of the SEPPmail Secure E-Mail Gateway from the Internet - generally via SSL port 443 (see Setting Up The Firewall/Router) is to be guaranteed.
Furthermore, a valid SSL certificate of an accredited certification authority (CA) should be integrated on the SEPPmail Secure E-Mail Gateway (see SSL).
The actual settings for the GINA web interface can be made via GINA Domains and/or .