Am 24.02.2018 um 11:25 schrieb Let's Encrypt Expiry Bot via Admin:
Hello,
Your certificate (or certificates) for the names listed below will expire in 20 days (on 16 Mar 18 10:43 +0000). Please make sure to renew your certificate before then, or visitors to your website will encounter errors.
dns2.ffnw.de
Kann ignoriert werden da nicht mehr genutzt.