Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. https://crt.sh/?q=example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.
My domain is: mail.boltcorp.com
I ran this command: sudo certbot certonly --webroot --agree-tos --email your-email-address -d mail.boltcorp.com -w /var/www/html/
It produced this output:
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator webroot, Installer None
Starting new HTTPS connection (1): acme-v02.api.letsencrypt.org
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for mail.boltcorp.com
Using the webroot path /var/www/html for all unmatched domains.
Waiting for verification…
Cleaning up challenges
Failed authorization procedure. mail.boltcorp.com (http-01): urn:ietf:params:acme:erro r:unauthorized :: The client lacks sufficient authorization :: Invalid response from h ttp://mail.boltcorp.com/.well-known/acme-challenge/G5GCwtj_u6SM0NryadZ1fcZ-uG1nFSFOBGO OnmRoZig: “<html lang=“en” data-adblockkey=MFwwDQYJKoZIhvcNAQEBBQADSw AwSAJBANnylWw2vLY4hUn9w06zQKbhKBfvjFUCsdFlb6TdQhxb9RXWX”
The following errors were reported by the server:
Detail: Invalid response from
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):
nginx version: nginx/1.10.3
The operating system my web server runs on is (include version): ubuntu 16.04 LTS
My hosting provider, if applicable, is:
Microsoft Azure Cloud
I can login to a root shell on my machine (yes or no, or I don’t know):
Yes, I can login as Root.
I’m using a control panel to manage my site (no, or provide the name and version of the control panel):