Let's Encrypt X3 nightmare

[david (David Taylor)]

All mail-receivers installed before today will need to be updated. (technically, any install using a base image earlier than 67222bded865)

The docker pull will be necessary until we update launcher (which is unlikely to be today/tomorrow). I just pushed an announcement topic here, because I know this will be disruptive to many sites. It includes update instructions, including the docker pull:

Self-hosted mail-receiver update following Let's Encrypt root certificate change

This announcement only affects self-hosters who are running Direct-delivery incoming email for self-hosted sites. Managed hosting customers, and self-hosters using POP3 for incoming mail are not affected. As you may be aware, Let’s Encrypt recently changed their root certificate. The old root certificate expired today, and has caused a number of issues for out-of-date clients across the web. All of our systems at CDCK are up-to-date, and were not affected by today’s expiration. Unfortunately we…