Nur habe ich keine Ahnung. Wer kann mir die Augen öffnen?
Assuming you only need the LetsEncrypt certificate, right ?
Anyway, either you can grab one manually using 3rd party software and there is plenty of them, most of them have the ability for scheduling and automatic download/update the certificate into files or into storage.... or go with Delphi implemented one with ICS.
It is called ACME protocol,
https://en.wikipedia.org/wiki/Automa...nt_Environment , to my knowledge only ICS have it fully implemented and provided publicly, i suggest to at least use ICS for the certificate part if you are already using or familiar with different network framework/
package.
I implemented my own ACME on top of my old SecureBlackBox and most the time using it with RealThinClient.
Sorry, if i missed the point of the question, though hope that helps.