Incoming mail for ftp.inesc.pt is handled by one mailserver at inesc.pt. ftp.inesc.pt has one IP number , which also has a corresponding reverse pointer. inesc.pt, inesc.com, inesc-id.pt, ntp.inesc.pt, www.inesc.pt and at least 100 other hosts share mailservers with this domain. inesc.pt is a domain controlled by three nameservers. Two of them are on the same IP network. Incoming mail for inesc.pt is handled by one mailserver also at inesc.pt. ftp.inesc.pt is hosted on a server in Portugal.