Summary
srv3-sao.sao.terraempresas.com.br has one IP number , which also has a corresponding reverse pointer.
mx.lisot.com.br,
smtp.obaoba.com.br,
mx1.solorico.com.br,
mx1.expodireto.com.br,
mx1.cpaferrarin.com.br and at least six other hosts cnames to this hostname.
mx.dety.com.br,
a.mx.sae.com.br,
mx1.galo.com.br,
mx2.rosul.com.br,
mx2.lisot.com.br and at least 25 other hosts point to the same IP.
b4b.com.br,
otmo.com.br,
uape.com.br,
play.com.br,
lech.med.br and at least 100 other hosts use this as a mailserver.
sao.terraempresas.com.br is a domain controlled by two nameservers at
terraempresas.com.br. They are on the same IP network. Incoming mail for
sao.terraempresas.com.br is handled by two mailservers on different IP networks.
srv3-sao.sao.terraempresas.com.br is hosted on a server in Brazil.