Summary
mail.dmk.ir has one IP number , which is the same as for
dmk.ir.
dmk.ir,
pso.ir,
inguu.ir,
irpmo.com,
irpmo.org and at least 100 other hosts point to the same IP.
dmk.ir use this as a mailserver.
dmk.ir is delegated to two nameservers, however one extra nameserver is listed in the zone. All of them are on the same IP network. Incoming mail for
dmk.ir is handled by one mailserver at
dmk.ir themselves.
mail.dmk.ir is hosted on a server in Iran.