mail.ctsi.com.br has three IP numbers. All of them are on different IP networks. This hostname cnames to gmail.com. gmail.ie, gmail.ug, gmail.lu, gmail.ge, gmail.com and at least 15 other hosts point to the same IP. ctsi.com.br is delegated to two nameservers, however both delegated nameservers are missing in the zone and five other nameservers are listed. Two nameservers have the same IP number. Two of them are on the same IP network. Incoming mail for ctsi.com.br is handled by seven mailservers having a total of 28 IP numbers. Some of them are on the same IP network. ctsi.com.br has one IP number , but the reverse is 189-75-52-162.jvece301b.ipd.brasiltelecom.net.br. mail.ctsi.com.br is hosted on three servers in United States even though the hostname implies Brazil.