yesterday I ran into the 20 subdomains limit, as one of our wildcard expired. Unfortunately, I only realized that there was such a limit when the limit was hit. Now I read, that it’s possible to add up to 100 SAN Domains, to be able to use more subdomains. So I run
certbot certonly --webroot -w … -d otherdomain.de -d sub1.mydomain.de -d sub2.mydomain.de…
but I get an error about too many certificates for mydomain.de as well.
Is there an error in my approach or something I have overseen?
Do SAN subdomains count against the rate limit too, once the limit is hit?