go
Sorry, we have no information about postchi.takta.net. takta.net is delegated to two nameservers, however one delegated nameserver is missing in the zone and one other nameserver is listed instead. All of them are on the same IP network. Incoming mail for takta.net is handled by one mailserver at takta.net themselves.

takta.net
ns-soa records
ns1.sinet.ir
+ 81.12.12.201 81.12.0.0/19 AS21341 -
+ --- -
ns records
ns1.sinet.ir
+ 81.12.12.201 81.12.0.0/19 AS21341 -
+ --- -
ns2.sinet.ir
+ 81.12.12.202 81.12.0.0/19 AS21341 -
ns3.shdc.sinet.ir
+ 81.12.12.203 81.12.0.0/19 AS21341 -
mx records
mail.takta.net
+ 81.12.12.204 81.12.0.0/19 AS21341 mail.ng-net.com
+ --- mail.ng-net.com
+ --- ns4.shdc.sinet.ir
+ --- postchi.sinet.ir
+ --- libra.shdc.sint.ir
+ --- ns4.sinet.ir
ip numbers using ptr to this host
62.220.100.201
nameservers missing in parent delegation
ns3.shdc.sinet.ir
nameservers missing in zone
ns2.sinet.ir