Veuillez remplir les champs ci-dessous pour que nous puissions vous aider. Remarque : vous devez fournir votre nom de domaine pour obtenir de l’aide. Les noms de domaine des certificats émis sont tous rendus publics dans les journaux de Transparence de Certificat (par exemple, crt.sh | example.com). Par conséquent, le fait de ne pas indiquer votre nom de domaine ici n’aide pas à le garder secret, mais rend plus difficile pour nous le fait de vous aider.
I renewed all my certificates from my NAS on 2023.06.01 (June, 1st). I always used the same mail address.
I unfortunately delete my fb.nmdm.fr certificate. And I can't recreate it since more than a week.
But if I correctly read, I'm far away from the limit of 50 certificates by week, no ?
Sometimes Synology NAS issues this error by mistake. But, in your case you have gotten too many certs in past week. You are allowed 5 certs per week using the same domain name. (see link here)
You should learn why you are getting so many certs. You should only need to get one every 60 days or so. Maybe this article will help (link here)
Clearly, I was over the limit. I'll do my best in the future.
But I've got so many certs to have something clean: coupled with a reverse proxy, il allows me to address each service with a simple [service].nmdm.fr.
I know that another solution is:
to use a unique certificate associated to nmdm.fr,
One thing to note is that Synology NAS only supports wildcards when using subdomains of its ddns domain in the PSL. In this case it is a custom domain name.
Perhaps using a different ACME client could work but I don't know Synology well enough to say. Thought it worth pointing out anyway
Look for section that includes this:
Wildcard certificates are only supported for Synology DDNS.
I don't know why you would have to wait any longer. You have gotten 2 certs in the past week so are not rate limited by Let's Encrypt.
You might have to ask Synology about the reason for this error. As I noted earlier, sometimes they issue this error for reasons not related to Let's Encrypt.