Installed esmtp
Created a throwaway gmail account named [email protected] with password notsostrong

Changed ~/.esmtprc to:
identity [email protected]
        hostname smtp.gmail.com:587
        username "[email protected]"
        password "notsostrong"
        starttls required
and gave it 0600 permissions

set cron-apt to mailto [email protected]

installed some certificates to ~/.authenticate and gave them 0600 permissions