After completing this how-to you will have ...
It is required that at least .NET Framework 4.5 is installed. If not, this must be done in a first step.
Two key and DWORD entries must be set in the Windows registry of the computer running the ePortal:
Windows Registry Editor Version 5.00
A reboot is required after this change.
The registry settings instruct the secure channel to use the strongest possible cryptography at the transport layer. This allows the ePortal to use TLS 1.2 when communicating with the e-mail system and TLS 1.0 when communicating with eFlow.