Hi, Team
I'm trying to get certifications on my mail server which has no web server.
However, I have gotten following errors.
My domain is "corp-associe.jp"
The full domain name is "mail.corp-associe.jp".
I ran this command: certbot certonly --standalone -d mail.corp-associe.jp -m info@corp-associe.jp --agree-tos -n
*I installed certbot with "dnf install certbot" on CentOS8
It produced this output:
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator standalone, Installer None
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for mail.corp-associe.jp
Waiting for verification...
Challenge failed for domain mail.corp-associe.jp
http-01 challenge for mail.corp-associe.jp
Cleaning up challenges
Some challenges have failed.
IMPORTANT NOTES:
-
The following errors were reported by the server:
Domain: mail.corp-associe.jp
Type: unauthorized
Detail: Invalid response from
https://mail.corp-associe.jp/.well-known/acme-challenge/QjHTx-EqL8nAnGAvxwhtBlblc3JiUoCHX3nHJM9i4WY
[203.141.138.215]: "\n\n404 Not
Found\n\nNot Found
\n<p"To fix these errors, please make sure that your domain name was
entered correctly and the DNS A/AAAA record(s) for that domain
contain(s) the right IP address.
My web server is (include version):No web server
OS: CentOS8
Note: The DNS record of this domain has been registered properly.
Thank you for your supprot.
Regards,