Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator manual, Installer None
Renewing an existing certificate
Performing the following challenges:
dns-01 challenge for admin.rcorta.me
dns-01 challenge for autoconfig.rcorta.me
dns-01 challenge for autodiscover.rcorta.me
dns-01 challenge for mail.rcorta.me
dns-01 challenge for rcorta.me
dns-01 challenge for webmail.rcorta.me
dns-01 challenge for www.rcorta.me
Running manual-auth-hook command: /etc/webmin/webmin/letsencrypt-dns.pl
Running manual-auth-hook command: /etc/webmin/webmin/letsencrypt-dns.pl
Running manual-auth-hook command: /etc/webmin/webmin/letsencrypt-dns.pl
Running manual-auth-hook command: /etc/webmin/webmin/letsencrypt-dns.pl
Running manual-auth-hook command: /etc/webmin/webmin/letsencrypt-dns.pl
Running manual-auth-hook command: /etc/webmin/webmin/letsencrypt-dns.pl
Running manual-auth-hook command: /etc/webmin/webmin/letsencrypt-dns.pl
Waiting for verification...
Challenge failed for domain admin.rcorta.me
Challenge failed for domain autoconfig.rcorta.me
Challenge failed for domain autodiscover.rcorta.me
Challenge failed for domain mail.rcorta.me
Challenge failed for domain rcorta.me
Challenge failed for domain webmail.rcorta.me
Challenge failed for domain www.rcorta.me
dns-01 challenge for admin.rcorta.me
dns-01 challenge for autoconfig.rcorta.me
dns-01 challenge for autodiscover.rcorta.me
dns-01 challenge for mail.rcorta.me
dns-01 challenge for rcorta.me
dns-01 challenge for webmail.rcorta.me
dns-01 challenge for www.rcorta.me
Cleaning up challenges
Running manual-cleanup-hook command: /etc/webmin/webmin/letsencrypt-cleanup.pl
Running manual-cleanup-hook command: /etc/webmin/webmin/letsencrypt-cleanup.pl
Running manual-cleanup-hook command: /etc/webmin/webmin/letsencrypt-cleanup.pl
Running manual-cleanup-hook command: /etc/webmin/webmin/letsencrypt-cleanup.pl
Running manual-cleanup-hook command: /etc/webmin/webmin/letsencrypt-cleanup.pl
Running manual-cleanup-hook command: /etc/webmin/webmin/letsencrypt-cleanup.pl
Running manual-cleanup-hook command: /etc/webmin/webmin/letsencrypt-cleanup.pl
Some challenges have failed.
IMPORTANT NOTES:
 - The following errors were reported by the server:

   Domain: admin.rcorta.me
   Type:   unauthorized
   Detail: No TXT record found at _acme-challenge.admin.rcorta.me

   Domain: autoconfig.rcorta.me
   Type:   unauthorized
   Detail: No TXT record found at _acme-challenge.autoconfig.rcorta.me

   Domain: autodiscover.rcorta.me
   Type:   unauthorized
   Detail: No TXT record found at
   _acme-challenge.autodiscover.rcorta.me

   Domain: rcorta.me
   Type:   unauthorized
   Detail: No TXT record found at _acme-challenge.rcorta.me

   Domain: webmail.rcorta.me
   Type:   unauthorized
   Detail: No TXT record found at _acme-challenge.webmail.rcorta.me

   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.
 - The following errors were reported by the server:

   Domain: mail.rcorta.me
   Type:   dns
   Detail: DNS problem: NXDOMAIN looking up TXT for
   _acme-challenge.mail.rcorta.me - check that a DNS record exists for
   this domain

   Domain: www.rcorta.me
   Type:   dns
   Detail: DNS problem: NXDOMAIN looking up TXT for
   _acme-challenge.www.rcorta.me - check that a DNS record exists for
   this domain