ns1.shop.abci.fr has one IP number , which also has a corresponding reverse pointer. ns1.abci.fr and ns1.salon.abci.fr point to the same IP. shop.abci.fr use this as a nameserver. shop.abci.fr is a domain controlled by two nameservers. Two nameservers have the same IP number. Incoming mail for shop.abci.fr is handled by two mailservers on different IP networks. ns1.shop.abci.fr is hosted on a server in France.