smtp.mnet.net.uk has one IP number , which also has a corresponding reverse pointer. master.mnet.net.uk point to the same IP. rnid.com, isp3.com, asw2.net, rmlus.com, iasuk.org and at least 59 other hosts use this as a mailserver. mnet.net.uk is delegated to two nameservers, however both delegated nameservers are missing in the zone and two other nameservers are listed instead. All nameservers are at mnet.net.uk themselves. Some of them are on the same IP network. Incoming mail for mnet.net.uk is handled by two mailservers also at mnet.net.uk. Two mailservers have the same IP number. smtp.mnet.net.uk is hosted on a server in United Kingdom.