MX Records (Mail Exchange) are DNS records that are used to route email to email servers. You can have numerous MX Records posting to different email servers to prevent loss of email due to downtime. Email is sent to servers pointed to in MX records based on Priority which states that the lowest the Priority number the higher the priority of the server. Emails will be routed to MX records of 0 first.
Network protocols use specific ports. When traffic comes from the internet to your network you need to configure where that traffic goes. Port Forwarding allows you to point specific port to specific IP Addresses one […]