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

Product Support Self-hosting
,
5

You can test whether you’re running the old mail-receiver like this.

docker exec mail-receiver bash -c "cat /etc/issue|grep Alpine"

If it’s Alpine, it’s the old one.

docker exec mail-receiver bash -c "cat /etc/issue|grep 'Debian GNU/Linux 11'"

If it’s Debian, it’s the new one.