Definition: The term 'fetchmailrc.conf', commonly known as a mail server configuration file, refers to a file that is used by a web browser or other applications to manage access credentials for a specific email server (like Gmail). The purpose of this file is to provide an interface for the user to interact with the mail server, including specifying authentication details like username and password, whether the server uses HTTPS/SSL, and any additional settings such as domain name, port number, etc. This information is typically stored in a secure manner and can be securely transferred over various networks to allow remote access to an email account.