Objectives
In this chapter you will learn
More about using the mailx email client
To install and configure the IMAP server which allows remote email clients to access email on the server
To install and configure Thunderbird for a graphical email client
To use OpenSSL to generate a self-signed ID certificate suitable for testing
To configure Thunderbird to use the self-signed certificate with the STARTTLS authentication protocol
To use network analysis tools like ss and nmap to look for network connections related to email
To use those network tools to look for other ports that should not be open
