mail.4-v.net has one IP number , but the reverse is mail2.advancedhosters.com. mail2.n9e.net, mail2.rupex.net, mail.19fuck.net, mail.erectum.net, mail2.adulthq.net and at least 100 other hosts point to the same IP. 4-v.net use this as a mailserver. 4-v.net is delegated to four nameservers, however all four delegated nameservers are missing in the zone and four other nameservers are listed instead. All nameservers are having a total of 14 IP numbers. There are two duplicated IP numbers. Some of them are on the same IP network. Incoming mail for 4-v.net is handled by one mailserver at 4-v.net themselves. 4-v.net has one IP number. mail.4-v.net is hosted on a server in United States.