The example uses acme-v02.api.letsencrypt.org while acme-client.conf(5) still uses v01.
Index: acme-client.conf.5 =================================================================== RCS file: /data/cvs/src/usr.sbin/acme-client/acme-client.conf.5,v retrieving revision 1.20 diff -u -p -r1.20 acme-client.conf.5 --- acme-client.conf.5 17 Jun 2019 12:42:52 -0000 1.20 +++ acme-client.conf.5 4 Jul 2019 04:51:15 -0000 @@ -63,7 +63,7 @@ Macros are not expanded inside quotes. .Pp For example: .Bd -literal -offset indent -api_url="https://acme-v01.api.letsencrypt.org/directory"; +api_url="https://acme-v02.api.letsencrypt.org/directory"; authority letsencrypt { api url $api_url account key "/etc/acme/letsencrypt-privkey.pem"
