PS C:Userstest> docker run -it --rm -p 80:80 --name certbot -v "C:Docker/LetsEncrypt/etc/letsencrypt:/etc/letsencrypt" -v "C:Docker/LetsEncrypt/var/lib/letsencrypt:/var/lib/letsencrypt" -v "C:Docker/LetsEncrypt/var/log/letsencrypt:/var/log/letsencrypt" quay.io/letsencrypt/letsencrypt:latest certonly --standalone --standalone-supported-challenges http-01 --email myemail@mail.com -d mysite.duckdns.org

Warning: This Docker image will soon be switching to Alpine Linux.
You can switch now using the certbot/certbot repo on Docker Hub.
The standalone specific supported challenges flag is deprecated. Please use the --preferred-challenges flag instead.
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator standalone, Installer None
/opt/certbot/venv/local/lib/python2.7/site-packages/josepy/jwa.py:107: CryptographyDeprecationWarning: signer and verifier have been deprecated. Please use sign and verify instead.
  signer = key.signer(self.padding, self.hash)

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Please read the Terms of Service at
https://letsencrypt.org/documents/LE-SA-v1.2-November-15-2017.pdf. You must
agree in order to register with the ACME server at
https://acme-v01.api.letsencrypt.org/directory
-------------------------------------------------------------------------------
(A)gree/(C)ancel: a

-------------------------------------------------------------------------------
Would you be willing to share your email address with the Electronic Frontier
Foundation, a founding partner of the Let's Encrypt project and the non-profit
organization that develops Certbot? We'd like to send you email about EFF and
our work to encrypt the web, protect its users and defend digital rights.
-------------------------------------------------------------------------------
(Y)es/(N)o: y
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for mysite.duckdns.org
Waiting for verification...
Cleaning up challenges

IMPORTANT NOTES:
 - Congratulations! Your certificate and chain have been saved at:
   /etc/letsencrypt/live/mysite.duckdns.org/fullchain.pem
   Your key file has been saved at:
   /etc/letsencrypt/live/mysite.duckdns.org/privkey.pem
   Your cert will expire on 2018-06-22. To obtain a new or tweaked
   version of this certificate in the future, simply run certbot
   again. To non-interactively renew *all* of your certificates, run
   "certbot renew"
 - Your account credentials have been saved in your Certbot
   configuration directory at /etc/letsencrypt. You should make a
   secure backup of this folder now. This configuration directory will
   also contain certificates and private keys obtained by Certbot so
   making regular backups of this folder is ideal.
 - If you like Certbot, please consider supporting our work by:

   Donating to ISRG / Let's Encrypt:   https://letsencrypt.org/donate
   Donating to EFF:                    https://eff.org/donate-le