Certbot client: No. of Email ids can be registered and how to acquire account information

How many email ids can be provided by user while registering an account using Certbot. What is the syntax to add multiple email ids in one go using certbot. Also, how can we check registered email ids while using Certbot.
Consider we are using Certbot on CentOS with Nginx server.

As far as I know, you can only register one e-mail address per account.

You can however, register multiple accounts with certbot.

According to the command line options, you can use certbot register -m your@email.address to register a new account.

But as you might have guessed, you can only use one account (and thus one e-mail address) per certificate. If you need multiple certificates with each (or grouped) a different e-mail address, you can choose which account to use when requesting a new certificate.

Okay thanks for the reply.

More regarding information about email id attached with an account, we can go to /etc/letsencrypt/accounts/ and further in related folders we find regr.json file where all information is available.

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