go
trt1-webmail.trtrio.gov.br has one IP number. trt1.jus.br, trtrj.jus.br and trt1-webmail.trt1.jus.br point to the same IP. trtrio.gov.br is delegated to four nameservers, however three delegated nameservers are missing in the zone. Two of them are on the same IP network. Incoming mail for trtrio.gov.br is handled by one mailserver at trtrio.gov.br themselves. trtrio.gov.br has one IP number. trt1-webmail.trtrio.gov.br is hosted on a server in Brazil.

trt1-webmail.trtrio.gov.br
a records
 
+ 201.7.105.3 201.7.64.0/18 AS8167  
+ ---  

trtrio.gov.br
a records
 
+ 201.7.105.19 201.7.64.0/18 AS8167  
+ ---  
ns-soa records
ns1.trtrio.gov.br
+ 201.7.105.10 201.7.64.0/18 AS8167  
+ ---  
ns records
ns1.trtrio.gov.br
+ 201.7.105.10 201.7.64.0/18 AS8167  
+ ---  
ns2.trtrio.gov.br
+ 201.7.105.7 201.7.64.0/18 AS8167  
ns01-cta.brasiltelecom.net.br
+ 201.10.124.18 201.10.64.0/18 AS8167 -
+ --- -
+ --- ns01a-cta.brasiltelecom.net.br
ns02-bsa.brasiltelecom.net.br
+ 201.10.132.18 201.10.128.0/18 AS8167 -
+ --- -
+ --- ns02a-bsa.brasiltelecom.net.br
mx records
mx1.trtrio.gov.br
+ 201.7.105.8 201.7.64.0/18 AS8167 mx1.trt1.jus.br
+ --- mx1.trt1.jus.br
+ --- -
+ --- mx1.trtrj.jus.br
ip numbers of host
201.7.105.3
hostnames sharing ip with a-records
trt1-webmail.trt1.jus.br
trt1.jus.br
trtrj.jus.br
domains using this as mailserver under another name
trt1.jus.br
nameservers missing in zone
ns01-cta.brasiltelecom.net.br
ns02-bsa.brasiltelecom.net.br
ns2.trtrio.gov.br