Colocation Facilities/ Datacenters are places that allow you to rent space for your server infrastructure. You can rent by the Rack or the U. They have redundant power, internet connection and industrial HVAC systems so that your servers run in a top of the line environment.
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. […]
VPS , Virtual Private Servers, are simply virtual servers that are hosted by vendors such as Linode and Digital Ocean.