== letencrypt client setup problem

So there are three possibilities:
a) we add a few DNS server entries so that waldman-edv
   is the primary 
b) we transfer technical ownership of the Domain to waldman-edv
   and they handle it. (But keep Admin-C and Owner-C for Richard.)

Richard would be okay with changing the DNS maintenance.
Either a) or b) would be a one-time setup fee of 90€.
(Which Intevation would sponsor.)

c) Waldmann-edv changes their infrastructure to support letsencrypt via
http protocol (~4h of work, no additional use case).

I'll chat with @ThomasAH about which of a) or b) makes more sense.