I took 4 certificates for sub domains in the same domain.
I could renew certificates of mydomain.com, www.mydomain.com and opensource.mydomain.com but when I tried to renew certificate of mail.mydomain.com, it showed the following error.
An unexpected error occurred:
There were too many requests of a given type :: Error creating new cert :: Too many certificates already issued for: mydomain.com
Please see the logfiles in /var/log/letsencrypt for more details.
I need mail.mydomain.com certificate so I tried to renew mail.mydomain.com certificate after I revoked opensource.mydomain.com certificate but it shows the same error message again.
What should I do to renew mail.mydomain.com certificate?