Summary
smtp.onored.com has one IP number , which also has a corresponding reverse pointer.
mail.eoi.es,
mail.fab.es,
mail.cob.es,
mail.som.es,
mail.aceb.es and at least 100 other hosts point to the same IP.
hgc.es,
sgb.es,
bexap.es,
reus.cat,
subus.es and at least 90 other hosts use this as a mailserver.
onored.com is delegated to two nameservers, however one extra nameserver is listed in the zone. All nameservers are at
ono.com. All of them are on the same IP network. Incoming mail for
onored.com is handled by one mailserver at
onored.com themselves.
smtp.onored.com is hosted on a server in Spain.