Summary

ns1.cha.smartechcorp.net and ns2.cha.smartechcorp.net are subdomains to this hostname. smartechcorp.net is delegated to four nameservers, however one extra nameserver is listed in the zone. Some of them are on the same IP network. Incoming mail for smartechcorp.net is handled by two mailservers at smartechcorp.net themselves. They are on the same IP network. smartechcorp.net has one IP number.