It can use the function of Maintenance of Entrance of MX to change towards where email of the dominion is sent is sent. This allows him to have an email of a dominion sent to another one. To change the data of the MX will change the record of DNS of MX of its sites. It can use this function to create an endorsement of a mail to exchanger that it will receive the mail when the first one exchanger is decomposed. When primary exchanger it is working, the mail shipment will begin again. In order to do this it will need to add a secondary data of MX for his dominion with one more a proridad lower than the data of the primary MX. It takes considering which 0 is 10 the highest priority and lowest.
To return 
