Configure Email with Postfix and Dovecot on Debian and Ubuntu Proposed Changes

[elplatt]

Link: https://www.linode.com/docs/guides/email-with-postfix-dovecot-and-mysql/

Issue

Following the directions for the Setting Up MySQL to Send Email with Postfix and Dovecot section prints the following message (tested on a new Ubuntu 22.04 linode):

Securing the MySQL server deployment.

Connecting to MySQL using a blank password.
The 'validate_password' component is installed on the server.
The subsequent steps will run with the existing configuration
of the component.
Please set the password for root here.

After entering a password the following error is produced:

 ... Failed! Error: SET PASSWORD has no significance for user 'root'@'localhost' as the authentication method used doesn't store authentication data in the MySQL server. Please consider using ALTER USER instead if you want to change authentication parameters.

New password: 

And the user is prompted to enter the password again.