Summary
zeta.pucpr.edu.br has one IP number , but the reverse is
zeta.pucpr.br.
zeta.pucpr.br point to the same IP.
pucpr.edu.br use this as a mailserver.
pucpr.edu.br is delegated to two nameservers, however both delegated nameservers are missing in the zone and two other nameservers are listed instead. There are two duplicated IP numbers. Some of them are on the same IP network. Incoming mail for
pucpr.edu.br is handled by three mailservers at
pucpr.edu.br themselves. All of them are on the same IP network.
pucpr.edu.br has one IP number , which also has a corresponding reverse pointer.
zeta.pucpr.edu.br is hosted on a server in Brazil.