Emailer Send emails using mailutils in Ubuntu Runs only on Linux OS Set up your own mailing server: sudo apt-get install mailutils Choose Internet Site in the first option. Enter a single FQDN (Fully Qualified Domain Name) in the System mail name: text box References https://manpages.ubuntu.com/manpages/focal/man1/bsd-mailx.1.html https://mailutils.org/manual/html_section/mail.html