- i backup mail server by mel bych chranen proti spamu
- presnejsi vysvetleni co je backup mail server
The backup MX
A target server, i.e. one that knows how to deliver to the relevant user's e-mail mailbox is typically one which is the most preferred. Lower priority servers, a.k.a. backup MX or secondary MX, usually keep the messages in a queue waiting for the primary server to become available. If both servers are online or in some way connected to one another, the backup MX will typically queue a message briefly and immediately forward it to the primary MX. The backup MX is acting as a store-and-forward mail server.