Another way to help virtualization is booting in to the UEFI/BIOS immediately and turning on virtualization from your firmware configurations. Check the SMTP server configuration by sending an email information using the SMTP server. Among the list of approaches to do that is to use telnet. Keep to the https://awslinuxsupport11110.vidublog.com/26310147/5-easy-facts-about-linux-postfix-mail-server-setup-described